Huge Alphabetical List of All Questions A friend of mine told me that just because you have HIV doesn't mean you have AIDS. Is this true? Are fluorescent bulbs really more efficient than normal light bulbs? If they are, why? Are there more floods now than there used to be? At night, why does it take my eyes several minutes to get used to darkness? Biting on aluminum foil can be painful. Why? Can 2 cans and a string really be used to talk over a distance? Can Anyone Hear My Baby Monitor? Can bug zappers help transmit diseases? Can flour explode? Can grass seed grow on a lava rock as well as it can grow on soil? Can I get AIDS from a mosquito bite? Can I get struck by lightning when I'm indoors? Can I have more than one monitor on my Windows 98 machine? Can nasal sprays be addictive? Can the curvature of the Earth only be seen from outer space? Can water go bad? Can you calculate how far away lightning struck by how long it takes for the thunder to arrive? Can you explain pressurized airplane cabins? Can you explain the basic difference between analog and digital technology? Can you make a rocket engine using hydrogen peroxide and silver? Can you make time stand still? Celebrating the 200th Question! Could a car run on compressed air? Could anti-lock brakes detect a flat? Could I power my computer or my TV with a bicycle generator? Could I see a flashlight beam from Earth on the moon? Could someone really find a mummy in his backyard? Do certain radio wave frequencies pose health risks? Do commercial jumbo-jets have locks on the doors and ignition keys? Do race cars use gasoline like normal cars do, or do they use something else? Do the digits in my social security number represent anything in particular? Do the humps on camels hold water? Do those tall, skinny speakers work differently than regular speakers? Do whales and dolphins sleep? Do you know what causes me to get cramps in my legs when I exercise, or even worse why I get cramps in my sleep after exercising during the day? Do you know why some web pages end in htm, others end in html, still others end in asp and so on? Why all the different extensions? Does adding more RAM to your computer make it faster? Does drinking ice water burn calories? Does it do any good to air out rugs and mattresses outside? Does reading in low light hurt your eyes? Does the chicken's body make the shell and fill it with the white and yolk somehow, or does it make the white and yolk and then somehow wrap the shell How and why do bats hang upside down all day? How are astronomers able to measure how far away a star is? How are coffee, tea and colas decaffeinated? How are Crayons and markers made? How are movies stored on DVD discs? How are people able to breathe inside a submarine? How are the college football rankings determined? How are the Voyager spacecraft able to transmit radio messages so far? How big does a meteor have to be to make it to the ground? How can a totally logical machine like a computer generate a random number? How can an egg carton claim that the contained eggs have less fat and more vitamin E? How can an electric toothbrush recharge its batteries when there are no metal contacts between the toothbrush and the base? How can children from the same parents look so different? How can I burn MP3s from my computer onto CD-Rs? How can I make a pinewood derby car go faster? How can I make my own battery to win a contest at school? How can I measure the drag on a car? How can I tell if the light in my refrigerator goes off or not when I close the door? How can I track the NASA's Starshine satellite? How can my glasses change from transparent, when I'm inside, to dark when I go outdoors? How can ozone be both good and bad? How can the grass on the greens at a golf course be so perfect? How can there be seedless grapes? How can they reproduce? How can you make a wine glass sing? How can you measure the height of a tall tower? How could the year 2000 be a leap year when 1900 was not? How did public fountains, like those in Rome, work without any type of motor to pump the water? How did the game of paintball get started? How did they get a huge IMAX camera to the top of Mt. Everest? How do 30 pounds of air in your tires hold up 2 tons of car? How do 3D glasses work? How do a zebra's stripes act as camouflage? How do antibiotics work? How do artificial flavors work? How do astronauts function in their spacesuits for hours at a time? How do astronomers detect that a star has a planet orbiting it? How do bacteria become resistant to antibiotics? How do BB guns work? How do big city "shell games" and "three card monte" games work? How do brewers measure the alcohol in beer? How do CD-R discs work? How do CD-RWs (rewriteable CDs) work? How do developers get such realistic environments in video games? How do digital answering machines work? How do digital signatures work? How do dry chemical fire extinguishers work? How do ear thermometers work? How do exhaust headers work to improve engine performance? How do fans make you feel cooler? How do fireflies light up? How do fish rise and sink in the water? How do flies breathe? How do fog machines work? I would like to have one for a Halloween party. How do honey bees make honey? What exactly is honey? How do I add another USB device to my computer if I am out of USB ports? How do I add applications to the task bar in Windows 98 How do I become an astronaut? How do I build a telescope at home? How do I burn calories on a stair machine? How do I know if my catalytic converter has failed? How do instant cameras work? How do kosher foods work? How do mexican jumping beans work? How do microphones work, and why are there so many different types? How do mood rings work? How do motion sensing lights and burglar alarms work? How do one-way mirrors work How do optical mice work? How do oysters make pearls? How do people pull large objects with their teeth? How do plants compare to solar cells when it comes to collecting solar energy? How do polymer crystals work and why do they absorb so much water? How do Pop Rocks candy work? How do proximity-type Christmas-light testers work? How do radio-controlled clocks that set themselves to the atomic clock in Colorado work? How do retractable roofs in convertible stadiums work? How do satellites orbit the earth? How do scratch and sniff stickers work? What makes them last for years and years? How do Sea Monkeys work? How do self-cleaning ovens clean? How do smoke detectors intercommunicate? How do sodium acetate heat pads work? How do spray bottles pump fluid? How do stabilizer bars work? How do stock options work? How do store coupons work? How does the store get its money back? How do stud finders work? How do sunless-tanning products work? How do television ratings work? How do they figure out how many people are watching a show? How do the automobile ignition keys with chips embedded in them work? How do the battery testers on battery packages work? How do the blue-ish headlights on expensive luxury cars work? How do the characters in video games move so fluidly? How do the large Web sites handle the load of millions of visitors a day? How do the shoplifting prevention systems in stores work? How do the streetlights turn on automatically at night? How do they color old black-and-white movies? How do they create patterns in a baseball field? How do they create the hopping cars in American movies? How do they create the special effects in movies like The Matrix where the camera rotates around a frozen actor? How do they determine what day Easter will occur on? How do they get lead in a wooden pencil? How do they get the balls in ball bearings so perfectly round and smooth? How do they make cotton candy? How do they make Fortune Cookies? How do they make hollow chocolate Easter rabbits? How do they make maple syrup? How do they make marshmallows? How do they make the ice at an ice skating rink? How do they measure sea level? How do they start jet engines on airplanes? How do they superimpose the first down line onto the field on televised football games? How do those yo-yos with the special clutches work? How do time and dates work? How do torpedo engines work under water? How do touch-sensitive lamps work? How do touchscreen monitors know where you're touching? How do trick birthday candles work? How do truck weigh stations work? How do tuned intake runners work on your car? How do viruses and worms spread in email?? How Do Waterjets Work? How do you calculate G-forces? How do you convert engine torque to horsepower? How do you make clear ice cubes? How do you replace a seal under a toilet? How do you throw a boomerang so that it comes back to you? How do you write the chemical reaction that takes place in a smoke detector? How does a ball point pen work? How does a black light work? How does a blood pressure gauge (sphygmomanometer) work? What exactly is blood pressure? How does a blueprint work? How does a bubble jet printer work? How does a candle work? How does a car's rearview mirror work when it's in the glare-resistant setting? How does a carburetor work? How does a cat's purring work? How do cats make the purring noise? How does a catapult work? How does a CB radio antenna work? How does a computer's parallel port work? How does a computer's uninterruptible power supply (UPS) work? How does a counterfeit detector pen work? How does a crookes's radiometer work? How does a dehumidifier work? How does a Dippy Bird work? How does a dollar bill changer work? How does a DVD work? How does a fiber optic cable work? How does a FireWire (IEEE-1394) connection work? How does a fluorescent starter work? How does a fresnel lens work? How does a frost-free refrigerator work? How does a Galileo thermometer work? How does a gasoline pump at a filling station know when the tank is full? How does a GFCI outlet work? How does a gun silencer work? How does a halogen light bulb work? How does a heat pump work? How does a hybrid car work? How does a hydraulic ram pump work? How does a Jake Brake work on a big rig? How does a jet truck work? How does a kidney dialysis machine work? How does a laser speed gun work to measure a car's speed? How does a lava lamp work? How does a lie detector (polygraph) work? How does a long distance call work? How does a MagnaDoodle Work? How does a magnetic stripe on the back of a credit card work? How does a magneto work? How does a master key work? How does a Miller-cycle engine work? How does a movie clapperboard work? How does a "perfect game" in baseball work? How does a pinhole camera work? How does a quantum computer work? How does a rebreather work? How does a rice cooker know when to turn off? How does a security passcard work? How does a seismograph work? What is the Richter scale? How does a self-winding watch work How does a speedometer in an airplane work? How does a "Star Wars" lightsaber work? How does a T1 line work? How does a three-way light bulb work? How does a time-of-use program with the power company work? How does a traffic light detect that a car has pulled up and is waiting for the light to change? How does a vibrating cell phone or pager work? How does a water softener work? How does a water-cooled air conditioner work? How does a zip drive store so much more data than a floppy drive? How does acupressure work? How does an afterburner work? How does an air bag work? How does an EPIRB distress radio work? How does an Etch-a-Sketch Work? How does an Indiglo watch work? How does an oxygen canister on an airplane or a spacecraft work? How can heat generate oxygen? How does an X-ray machine work? How does botulism work? How does "bulletproof" glass work? How does Caller ID work? How is the caller's phone number sent to my phone? How does catnip work? Why is it only for cats? Would it work on tigers, leopards, etc.? How does chlorine bleach work? How does chlorine work to clean swimming pools? How does copy protection on a video tape work? How does disk defrag work? How does dry cleaning work? How does dry ice work? How does Dursban work? How does feedback work in a PA system to cause that howling sound? How does glow-in-the-dark stuff work? How does gravity assist work with interplanetary satellites? How does gravity work? How does hemp work? How does homeschooling work? How does JavaScript work and how can I build simple calculators with it? How does my computer know when to activate the screensaver? How does Napster work, and why is there such a huge fight around it right now? How does nitrous oxide help an engine perform better? How does olestra work? How does popcorn work? How does pressure-treated lumber work? How does reverse osmosis work? How does rust work? How does safety glass work? How does satellite Internet operate? How does saturation diving work? How does SETI@home work? How does silk screening work? How does someone become a saint? How does St. John's wort work? How does stealth technology work? How does the aurora borealis (the Northern Lights) work? How does the ball return work on a coin-operated pool table? How does the birthday paradox work? How does the Downy fabric-softener ball work? How does the Electoral College work? How does the electron gun inside a TV work, and why is it called an "electron gun"? How does the herbicide called Roundup work? How does the light gun on a video game work? How does the lighter in a BBQ grill work? How does the Melissa virus work? How does the NFL's salary cap work? How does the Nobel Prize work? How does the oxygen sensor in a car work? How does the pop-up timer on a turkey work? How does the sense of smell work? What causes a smell? How does the Social Security system work? How does the thermostat in a car's cooling system work? How does the toilet in a commercial airliner work? How does the "walkie-talkie" feature on a Nextel phone work? How does the widget in a beer can work? How does the windchill factor work? How does the Winston Cup points system work? How does this card trick work? How does venture capital work? How does your body know the difference between dominant and recessive genes? How does your stomach keep from digesting itself? How far does ultraviolet light penetrate into the body? How fast does hair grow? How hard is it to set up a network between 2 computers in my home? How is an electric guitar different from an acoustic guitar? How is helium made? How is my radio able to display the station's call letters? How is sound recorded on motion picture film? How is the LCD in a laptop computer so bright? How long can a germ live in a room? How long can a human survive in outer space? How many calories does a person need daily? How many regular-sized helium-filled balloons would it take to lift someone? How many senses does a human being have? How many sheets of paper can be produced from a single tree? How many solar cells would I need in order to provide all of the electricity that my house needs? How many teaspoons are there in a cubic light year? How much coal is required to run a 100-watt light bulb 24 hours a day for a year? How much corn would I need to grow in order to produce enough ethanol fuel to drive my car across the country? How much does 20-pound bond paper weigh? How much does it cost to run an electric blanket? How much does planet Earth weigh? How much does the average person eat in two years? How much does the U.S. president get paid? How much fuel does an international plane use for a trip? How much gasoline does the United States consume in one year? How much ice would I have to store up in the winter if I wanted to air condition my house all summer? How much oxygen does a person consume in a day? How much power does a small transformer consume if it is plugged in but not doing anything? How much sugar do they really put in soft drinks? How much water is there on Earth? How often do state quarters come out and how many does the mint produce? How strong are the magnets in an MRI machine? How will the Mir space station be deorbited? I am wondering what the little recycling symbols that you see on some plastic items mean. How many different symbols are there? I have heard that carbon monoxide is extremely poisonous. Can you explain why? I hear so much about relational databases. What are they? I would like to donate blood -- do they need all blood types or just certain ones? I would like to increase the horsepower of my car's engine. What's the best way to do this? I'm looking for a new computer monitor. What does the salesperson mean when he says I need a monitor with a .28 dot pitch or better? I've heard of bank robbers being foiled by a "dye pack" put in their money stash. What is a "dye pack"? I've noticed that I am not allowed to use my cell phone in airplanes or in hospitals. Why are these prohibitions in place? If all the money in the U.S. only totals $6 trillion, how can the NY Stock Exchange have stocks valued at $15 trillion? If daytime running lights were mandatory in the U.S., and all vehicles had them, how much extra gasoline would that use each year? If diesel engines are more efficient, why do most cars have gasoline engines? If I want to get started creating my own web site, what do I have to do? If nature abhors a vacuum, then why doesn't the vacuum of space suck away all of the Earth's atmosphere? If the polar ice caps melted, how much would the oceans rise? If water is made up of hydrogen and oxygen, why can't we breathe underwater? If you spun a carousel fast enough, could you get the edge of the carousel going nearly the speed of light so that time stood still for people on the If you took all of the gold in the world and put it in one place, how much would there be? If you were to move all of the matter in the universe into one corner of the universe, how much space would it take up? In a kitchen oven, what is the difference between the bake setting and the broil setting? In a track meet, how are false starts detected? In baseball, how does a pitcher throw a curveball? In built-in lawn sprinkling systems, there is a device called an anti-siphon valve. What is it for and how does it work? In Windows, what is 'Safe Mode' used for and why? Is a tomato a fruit or a vegetable? Is antibacterial soap any better than regular soap? Is chocolate poisonous to dogs? Is it better to turn my computer off when I am not using it, or to leave it on all the time? Is it harmful to breathe 100-percent oxygen? Is it more efficient to mow the yard in a spiral or up and back? Is it possible to detect if someone is illegally using my phone line? Is it possible to generate electricity directly from heat? Is it possible to see (with a telescope) the stuff left behind on the moon by the Apollo astronauts to prove whether the missions were real? Is it true that a diesel engine can operate under water while a gasoline engine cannot? Is it true that grilling meat can cause cancer? Is it true that scientists are predicting a really big earthquake will sink western California? Is it true that the Mac G4 processor is twice as fast as a Pentium III? Is the sound on vinyl records better than on CDs or DVDs? Is there a difference between inline and V engine configurations? Is there a difference between monkeys and apes? Is there a way to compare a human being to an engine in terms of efficiency? Is there a way to make my sunglasses scratch-resistant? Is there an easy way to record a radio show so I can listen to it later? Is there any rhyme or reason to how U.S. interstate highways are numbered? Is there any way to see satellites that are in orbit? Is there something in turkey that makes you sleepy? Is your name really Marshall Brain? Marshall, where do you go when YOU have a question? Meteors burn up when they hit the earth's atmosphere. Why doesn't the space shuttle? My glasses have an anti-reflective coating. How does that work? My scanner has a resolution of 9,600x1,200 dpi -- what do those numbers mean? On a microprocessor like a Pentium or a G4, why can't they simply crank the speed up to 1,000 MHz? On television, how does closed captioning work? Someone started controlling my computer over the Internet -- what happened? Three questions on caliber, gauge and nails. What are all the different ways to store energy besides using rechargeable batteries? What are amps, watts, volts and ohms? What are calories? How are they measured in food? What are carbide tips? What are chiggers and how do they bite? What are copyrights and patents? What are dissolvable stitches? What are electrolytes? What are frankincense and myrrh? What are genetically modified (GM) foods? What are Gouraud shading and texture mapping in 3-D video games? What are homogenization and pasteurization? What are hot dogs made from? What are motion cards and how do they work? What are MP3 files and how do they work? What are stem cells and what are they used for? What are system resources, and why do I run out of them? What are the 12 Days of Christmas? What are the best settings when e-mailing digital pictures to friends, and what settings do I use if I want to print the picture? What are the bumps at the end of computer cables? What are the differences between the various "chapters" of bankruptcy? What are the different types of brake fluid? What are the different types of computers? What are the "four Cs" that people talk about when buying a diamond? What are the standard top-level domain names and who controls them? What are those microchips that people put in their dogs? What are TrueType fonts? What are vitamins and how do they work? What causes a rainbow? What causes a sonic boom? What causes an ice cream headache? What causes flatulence? What causes heat stroke? What causes helium balloons to lose their lift after a day or two? What causes high tide and low tide? Why are there two tides each day? What causes me to gain 2 or 3 pounds during the day and then lose 2 or 3 pounds when I sleep? What causes poison ivy? What causes snoring and can anything be done about it? What causes "the bends"? What causes the common cold? What causes the faint horizontal lines on my monitor? What causes the loud banging noise in my home's pipes? What causes the seasons? What causes the smell after rain? What causes things like fatal exception errors and invalid page faults? What constitutes a person's IQ? What do digits in phone numbers mean? What do movie ratings mean, and who applies them? What do the big diamond-shaped signs with red, yellow and blue diamonds mean? What do the brake warning lights mean in my car? What do the little boxes that the phone company has around our neighborhood do? What do the symbols on the U.S. $1 bill mean? What do the UL marks on so many products mean? What do the words "Auld Lang Syne" mean? What do the yellow and black wires in a home telephone jack do? What do video game ratings mean? What do you call the @ symbol used in e-mail addresses? What does "2.4 liter" mean in the context of an engine? What does 900 MHz mean in a cordless phone? What does a V-chip really do and how does it work? What does Alt+F4 do? What does "Case Hardened" mean when it's stamped on a piece of metal? What does GSM mean in a cell phone? What does it mean when a barometer is rising or falling? What does it mean when a car has dual overhead cams? What does it mean when a hard disk has a "head crash"? What does it mean when someone has 20/20 vision? What does not guilty by reason of insanity mean? What does octane mean? What does open source mean? What does percent grade mean on a road? What does PEZ mean? What does R.S.V.P. mean? What does solid-state mean in relation to electronics? What does tear gas do? What does the battery light on the dashboard mean? What does the "CE" logo I see on lots of products mean? What does the computer in a car do? Will cars start on January 1, 2000? What does the filter on a cigarette do? What does the name "WD-40" stand for? What does the VTEC system in a Honda engine do? What does the weight mean on a can of motor oil? What exactly is amnesia? What exactly is dyslexia? What exactly is Jell-O made from? What exactly is Mensa? How smart do you have to be to join? What exactly is pastrami? What force causes a 3-pole motor to spin one way and not the other? What gives a Harley-Davidson motorcycle its distinctive sound? What happens if I don't fill out my census form? What happens if I touch the surface of a CD? What happens when someone gets a Botox injection? What is a birthmark? What is a carat, and how does it relate to a karat? What is a catalytic converter and how does it work? What is a cavity in a tooth? Why do they drill it? What is a "computer algorithm"? What is a decibel, and what is the loudest sound I can listen to before it hurts my ears? What is a fossil? What is a funicular railway? What is a gene, and what is genetic engineering? What is a glacier? What is a heart bypass operation? What is a keyhole satellite and what can it really spy on? What is a light year? What is a MiniDisc and how does it differ from a CD? What is a nautical mile, and how does it differ from a normal mile and a kilometer? What is a "nervous breakdown"? What is a Nor'easter? What is a packet? What is a punkin chunkin, and what types of machines throw those pumpkins so far? What is a remotely operated spy plane? What is a Rice Krispy? What is it made out of and how do they make it? What is a smart card? What is a spider's silk made of? What is a tank engine, as in "Thomas the Tank Engine"? What is a "trade secret," and how is it different from a patent or copyright? What is activated charcoal and why is it used in filters? What is Aimster? What is all the flickering when recording a television set picture with a video camera? What is an appendix and what causes appendicitis? What is an atomic clock and how does it work? What is an Internet "cookie"? What is an IP address? What is an MRE? What is an oscilloscope used to measure? What is baking powder and how does it work? What is carrageenan? What is chewing gum made of? What is déjà vu? What is digital spread spectrum as used in cordless telephones? What is dioxin? There is a lot of discussion going on in my town about it and its dangers. What is dye-sublimation printing? What is dynamite and how does it work? What is fertilizer and why do plants need it? What is foot-and-mouth disease? What is in an antiperspirant that stops sweat? What is in moth balls? Is it harmful to people? What is Linux, and why is it so popular? What is Low Power FM (LPFM)? What is lymph? What is mayonnaise? What is MIME? What is narcolepsy? What is OxyContin? What is plywood? Why do people use it so much? What about oriented strand board (OSB)? What is relative humidity and how does it affect how I feel outside? What is root beer? What is silica gel and why do I find little packets of it in everything I buy? What is sodium nitrate? It seems like lots of meats contain it. Is it in any way harmful? What is "sunburn"? What is superconductivity? What is the big deal about milk - why do people treat it like some kind of miracle drink? What is the biggest animal ever to exist on Earth? What is the Chandler wobble? What is the churning sound I hear from my hard drive whenever it is retrieving data? What is the crystaline substance found in disposable diapers? What is the difference between a fluorescent light and a neon light? What is the difference between a hardwood and a softwood? What is the difference between a house, a mobile home, a condominium, a co-op and a townhouse? What is the difference between a normal lead-acid car battery and a deep cycle battery? What is the difference between a Pentium III and a Celeron processor? What is the difference between a turbocharger and a supercharger on a car's engine? What is the difference between analog and digital cell phones? What is the difference between CCD and CMOS image sensors in a digital camera? What is the difference between DVD-audio and CDs? What is the difference between espresso and drip coffee? What is the difference between gasoline, kerosene, diesel fuel, etc.? What is the difference between jelly, jam and preserves? And what exactly is Jell-O? What is the difference between snow, sleet and freezing rain? What is the difference between "soft money" and "hard money" campaign donations? What is the difference between static RAM and dynamic RAM in my computer? What is the Dow Jones Industrial Average? What is the function of the fan in a refrigerator? What is the heat index that the weatherperson talks about during the summer? What is the ideal temperature for a refrigerator? What is the problem with MTBE in gasoline? What is the Strategic Petroleum Reserve? What is the UV index and how is it calculated? What is the world's fastest computer? What is the Year 2038 problem? What is this bumpy stuff on my ceiling that looks like popcorn or cottage cheese? What is "top fuel," and how is it different from gasoline? What is "virtual memory"? What is white noise? What makes glass transparent? What makes NASCAR engines different from the engines in street cars? What makes super glue so super? What makes us yawn? What makes you dizzy when you spin? What makes your arms, legs and feet fall asleep? What makes your knuckles pop? What speed should I drive to get maximum fuel efficiency? What would happen if I drilled a tunnel through the center of the Earth and jumped into it? What would happen if you fired a gun on a train moving as fast as a bullet? What's the fastest way to thaw a frozen turkey? When a baseball player hits a home run, how do they know how far the ball traveled? When an aerobatic plane flies upside down, how does the fuel get to the engine? When buying gas appliances, why do you always have to specify whether you are using LPG or natural gas? When I pay for my groceries by check, where does that check go? When I put my car in park, what really keeps it from moving? When I stand at the water's edge and look out over the ocean, how far away is the horizon? When you delete files from your computer and after you empty it out of the Recycle Bin, where exactly does it go? When you have an itch, what is happening under your skin? Where are all the Internet domain names registered and maintained? Where did the potato chip come from? Where do all those strange names for prescription drugs come from? Where do bullets go when guns are fired straight up into the air? Where do salad dressings get their names? Where does a diesel-powered sub get all of the engine's oxygen from? Where does cork come from? Where does corn oil and corn syrup come from? Where does the color come from in purple cabbage? Where is the best place to sit when I go to the movies? Where should I sit to get the best ride on a roller coaster? Which came first, the chicken or the egg? Which is better to use for a cable modem -- a USB connection or an Ethernet card? Which is the tallest building in the world? Which place on the planet will be the first one to celebrate the new year on January 1, 2000? Who are the Duke of York, Duke of Kent, etc., and how did they get their titles? Who came up with Mother's Day and why? Why are barns usually painted red? Why are boogers sticky? Why are moths attracted to light? Why are my digital photograph files so huge while photos on other Web sites are much smaller? Why are my power bills so high? What appliances use the most power? Why are some national contests invalid in certain states and other countries? Why are the insides of tunnels usually covered in ceramic tile? Why are the keys arranged the way they are on a "QWERTY" keyboard? Why are the waves on the U.S. West Coast larger than the waves on the East Coast? Why are there more thunderstorms during the summer? Why are there so many broken links in search engines? Why are there so many different connectors on my DVD player? Why are there so many different image formats on the Web? Why are they replacing all of the toilets in my apartment? Why are they replacing all of the traffic lights in my town? Why can a trained athlete run a marathon, but a couch potato cannot run half a mile? Why can boats made of steel float on water when a bar of steel sinks? Why can I play some DVD movies, but not others, on my computer DVD-ROM? Why can some medicines be taken as pills, while other medicines have to be injected with a needle? Why can you hear the ocean when holding a seashell to your ear? Why can't you tickle yourself? Why do all FM radio stations end in an odd number? Why do apples and potatoes turn brown when you slice them? How do you keep them from turning brown? Why do batteries seem to go dead and then come back to life if you let them rest? Why do big diesel engines and race car engines have such different horsepower ratings? Why do brake lines have so many bends and loops? Why do bridges ice before the rest of the highway? Why do cats have whiskers? Why do CDs reflect rainbow colors? Why do CRTs contain lead? Why do doors squeak? How do you solve the problem? Why do eggs turn hard when you boil them? Why do feet stink? Why do golf balls have dimples? Why do hurricanes seem to move as if they have a mind of their own, and why do they follow such peculiar tracks? Why do I need an electrical adapter when I travel overseas? Why do many foods have "High Altitude Cooking Instructions"? Why do most zippers say "YKK" on the pull-tab? Why do my ears pop when I dive in the deep end of the pool? Why do my home and office seem to be infested with gnats in the summer? Where are they coming from? Why do newspapers turn yellow over time? Why do onions make you cry? Why do people have red eyes in flash photographs? Why do people tap on soda cans before opening them? Why do some clothing items have a tag saying to wash the item before wearing? Why do some dump trucks have extra, moveable axles? Why do some engines use a dry sump oil system? Why do some U.S. bills have a star instead of a letter at the end of the serial number? Why do some Web sites include "www" in the URL while others don't? Why do the entry doors to most homes open inward, while in most public buildings, the entry doors open outward? Why do the plugs on some appliances have two prongs and others have three prongs? Why do the two flat prongs on the plugs for electrical appliances have holes in them? Why do they add iodine to table salt? Why do they include Jokers in a deck of cards? Why do they use salt to melt ice on the road in the winter? Why do those long, white clouds form behind jets flying high overhead? Why do tools have "Drop Forged" stamped on them? What is drop forging? Why do we celebrate Labor Day? Why do we get headaches? Why do we have eyebrows? Why do Wint-O-Green Life Savers spark in the dark? Why do you hear some radio stations better at night than in the day? Why do you see "10 9 8 7 6 5 4 3 2 1" on the copyright page of many books? Why does a mirror exchange left and right but not up and down? Why does Alka Seltzer fizz? Why does caffeine keep you awake? Why does chocolate turn gray sometimes? Is it still safe to eat? Why does hydrogen peroxide foam when you put it on a cut? Why does it say 1-bit Dual D/A converter on my CD player? Why does lettuce in a bag stay fresh longer than a head of lettuce? Why does my computer need a battery? Why does my manual transmission car make a loud whirring noise in reverse? Why does my PC try to access my floppy disk drive when there is no diskette in it? Why does my Web browser display some book-marked sites with a custom icon? Why does smoke come from a fire? Why does the hair on your arms stay short, while the hair on your head can grow very long? Why does the moon look so much bigger when it is near the horizon? Why does the phone still work when the electricity goes out? Why does the sky get dark at night? Why does the stock market use fractions? Why does the weight come back so quickly once I stop dieting? Why does your body temperature rise when you have a virus such as the flu? Why doesn't gasoline burn cleanly? Why doesn't paper money disintegrate when it gets washed in the washing machine? Why doesn't the exhaust in a jet engine come out the front? Why don't they use normal air in race car tires? Why don't water towers freeze solid in the winter? Why is a cell phone called a "cell" phone? Why is a Popsicle called a "quiescently frozen confection"? Why is a table saw quiet but a circular saw loud? Why is April 1 a day to celebrate foolishness? Why is cotton more absorbent than nylon? Why is it called a hamburger when there is no ham in it? Why is it colder at the top of a mountain than it is at sea level? Why is it considered unlucky when the thirteenth day in a month falls on a Friday? Why is it so hard to start a car in the winter? Why is it that some web pages seem to trap me so I can't get out? Why is snow white? Why is southern exposure so sought after when searching for an apartment in the city? Why is the back of a refrigerator painted black? Why is the keypad arrangement different for a telephone and a calculator? Why is the sky blue? Why is there a bulge in the exhaust pipe of my dirt bike? Why is there a small hole on the top of spray-can lids? Why shouldn't I go in swimming right after I eat? Why shouldn't pregnant women smoke? Why the difference in speed with my cable modem? Why was "911" chosen as the emergency phone number? Will aspartame make me go blind? Will we ever have space ships parked in our garages? Would a balloon filled with vacuum instead of helium float? You often hear the expression, "If I had all the money in the world, I would..." My question is, how much money is "all the money in the world"?