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What would happen if I drilled a tunnel through the center of th"

What would happen if I drilled a tunnel through the center of th"
Want to really get away from it all? The farthest you can travel from home (and still remain on Earth) is about 7,900 miles (12,700 kilometers) straight down, but you'll have to journey the long way round to get there: 12,450 miles (20,036 kilometers) over land and sea. Why not take a shortcut, straight down? You can get there in about 42 minutes -- that's short enough for a long lunch, assuming you can avoid Mole Men, prehistoric reptiles and underworld denizens en route. Of course, you'd be in for a rough ride. For sake of argument (and survival) let's pretend the Earth is a cold, uniform, inert ball of rock. At the Earth's surface, gravity pulls on us at 32 feet (9.8 meters) per second squared. You're still moving at a heck of a clip, though, so don't expect to stop there. Of course, reality has a tendency to intrude on even the best thought experiments. Related:  kafesha

Why are past, present, and future our only options? But things get awkward if you have a friend. (Use your imagination if necessary.) Low blow, Dr. Dave. Low blow... But seriously, I always figured if there was more than one dimension of time, that moving "left" or "right" would be the equivalent of moving to a parallel universe where things were slightly different. That is to say, maybe time really is 2 dimensional, but for all the reasons you mention, we're normally only aware of one of them—and for the most part, the same one that most of the people we meet are aware of. But take, say, a schizophrenic person—maybe they're tuned in differently; moving sideways through time instead of forward... or maybe moving through (and aware of) both simultaneously. They can't form coherent thoughts because they're constantly confronted with overlapping and shifting realities. I dunno... that's all just speculation, of course, but I find that thought fascinating.

Amazing Underwater River : Cenote Angelita in Mexico Underwater River in Mexico If you are a professional diver you should visit Cenote Angelita Mexico. These amazing pictures were taken by Anatoly Beloshchin in the cave Cenote Angelita, Mexico. – salty water and under me I see a river, island and fallen leaves… Actually, the river, which you can see, is a layer of hydrogen sulphide.” Incoming! The World’s 10 Worst Invasive Species The introduction of non-native species of plants and animals to a new ecosystem almost always results in environmental stress, degradation and sometimes even disaster. These 10 invasive species are infamous for the destruction they have caused, even when introduced with the best of intentions. Kudzu (images via: Free Republic, JJ Anthony and Cynical-C) Kudzu… its name may sound like that of a Japanese movie monster and this pretty ornamental vine does indeed originate in Japan (and southeast China) – and has caused extensive destruction to boot. The only plant on this list, kudzu earns a place in the annals of misguided attempts to introduce foreign species because it was one of the first such invaders to be noted, publicized and controlled. (image via: NYU) Kudzu was first displayed in the United States at the Philadelphia Centennial Exposition in 1876, where it was extolled as a hardy, fast-growing ground cover that could help inhibit soil erosion. Rabbits Starlings (image via: He and Fi)

Human World Human World The women of the Tiwi tribe in the South Pacific are married at birth. When Albert Einstein died, his final words died with him. St Patrick, the patron saint of Ireland, was not Irish. The lance ceased to be an official battle weapon in the British Army in 1927. St. Many sailors used to wear gold earrings so that they could afford a proper burial when they died. Some very Orthodox Jew refuse to speak Hebrew, believing it to be a language reserved only for the Prophets. A South African monkey was once awarded a medal and promoted to the rank of corporal during World War I. Born 4 January 1838, General Tom Thumb's growth slowed at the age of 6 months, at 5 years he was signed to the circus by P.T. Because they had no proper rubbish disposal system, the streets of ancient Mesopotamia became literally knee-deep in rubbish. The Toltecs, Seventh-century native Mexicans, went into battle with wooden swords so as not to kill their enemies. Pogonophobia is the fear of beards. John D.

Aerodynamics (Mechanics of Flight)--Science Tracer Bullet Tracer Bullet 00-3 Aerodynamics is the science that deals with the motion of air and other gaseous fluids, and with the forces acting on solid bodies when they move through gaseous fluids, or when gaseous fluids move against or around solid bodies. Therefore aerodynamics comes into play when air is flowing over airplanes, automobiles, cars, ships, buildings, and other objects. Aerodynamics also comes into play when air is flowing through ducts or other enclosed spaces such as wind tunnels, jet and rocket engines, and pipes. Anderson, John D. Datta, Sreela. Wegener, Peter P. Subject headings used by the Library of Congress, under which books on aerodynamics can be located in most card, book, and online catalogs, include the following: Anderson, John David. Anderson, John David. Anderson, John David. Hubin, Wilbert N. Tennekes, H. Abzug, Malcolm J., and E. Anderson, John David. Ashley, Holt. Bertin, John J., and Michael L. Cook, M. Dole, Charles E., and James. Hancock, G. Russell, J.

Download Graphic Images from the Hillis/Bull Lab Return to "Download Files" Page You are welcome to download the following graphic image of the Tree of Life for non-commercial, educational purposes: Tree of Life (~3,000 species, based on rRNA sequences) (pdf, 368 KB) (see Science, 2003, 300:1692-1697) This file can be printed as a wall poster. Tree of Life tattoo, courtesy of Clare D'Alberto, who is working on her Ph.D. in biology at the University of Melbourne. The organisms depicted in this tattoo are (starting at 4 o'clock and going around clockwise): (1) a cyanobacterium (Anabaena); (2) a radiolarian (Acantharea); (3) a dinoflagellate (Ceratium); (4) an angiosperm (Spider Orchid); (5) a couple species of fungi (Penicillium and a yeast); (6) a ctenophore (comb jelly); (7) a mollusc (nudibranch); (8) an echinoderm (brittle star); and (9) a vertebrate (Weedy Sea Dragon). Here is another great Tree of Life tattoo! Cover of Molecular Systmatics, 2nd ed Here is yet another version from Hannah Udelll at the University of Wisconson-Madisson.

wow Now just up a few steps. (They are on the left in the picture) Gets a little steeper here - so put your toes in the holes. A few more steps to go. Finally in sight, the Teahouse! Click here to Watch the Cliff Hanger PPS! Click here to Watch the Cliff Hanger PPS! Dhtml Menu Navigation by v5.7 Mistaken Identity In 1903, a prisoner named Will West arrived at Leavenworth. The record clerk took the photographs above and, thinking he remembered West, asked whether he had been there before. West said no. The clerk took some measurements, went to the file, and produced this record, bearing the name William West: Amazed, the prisoner said, “That’s my picture, but I don’t know where you got it, for I know I have never been here before.” Incredibly, this was true. The case became a strong argument in favor of the new science of fingerprinting.

Seven Speaking Tips That Beat “Pretend Your Audience Is Naked" Aggh. Everyone showed up clothed! Once upon a time, I suffered from glossophobia. This affliction touches billions. I conquered it by discovering what makes people smile, nod, and listen carefully, because nothing calms you down faster than an interested audience. This is what I've learned. Children plea for them at night, and adults crave them, too. They want to be respected. This principle also underlies another rule of effective speaking: Dress like your audience, but just a little bit better." {*style:<i>Don't try to impress them. </i>*} If you truly want to help your listeners--by informing or motivating them, or improving their lives--they will care and listen. This recalls a favorite tip: We mistrust people who won't look us in the eyes--even if our eyes are among over 200 sets in a room. If you look each person in the eye for a few seconds, you make each person feel important--a feeling that every person craves. For this reason, minimize visual aids. . .

Personal and Historical Perspectives of Hans Bethe 10 Strange Things About The Universe Space The universe can be a very strange place. While groundbreaking ideas such as quantum theory, relativity and even the Earth going around the Sun might be commonly accepted now, science still continues to show that the universe contains things you might find it difficult to believe, and even more difficult to get your head around. Theoretically, the lowest temperature that can be achieved is absolute zero, exactly ? One of the properties of a negative-energy vacuum is that light actually travels faster in it than it does in a normal vacuum, something that may one day allow people to travel faster than the speed of light in a kind of negative-energy vacuum bubble. One prediction of Einstein’s theory of general relativity is that when a large object moves, it drags the space-time around it, causing nearby objects to be pulled along as well. Relativity of Simultaneity Since this extra dimension is so small, only tiny objects, such as particles, can move along it. Antimatter Retrocausality

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