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SPECULATIVE SCIENCE Which would get closer to the moon if fired from earth - a bullet or a missile? (no answers) Which way to New Zealand uses the most aircraft fuel; via the Americas or via Asia? (no answers) Does my iPod use more battery the louder I play it? (no answers) Given the quantity of hardware orbiting the earth, does any of it affect our horoscopes? (no answers) My query is a variation of Olbers Paradox - this is a brilliant idea whereby if the universe is infinite in size and infinitely old then every direction an observer looks must eventually alight on a star therefore the night sky would be as bright as the surface of a star. The fact that the night sky is dark tells us that the universe cannot be both infinitely large and infinitely old. Could it be infinite in size but finite in age? Well that would imply that the universe expanded infinitely fast. Therefore the fact that the night sky is dark implies that the universe cannot be infinite in size. My question is this, as we look out to space we look back in time, when the universe was younger it was denser, therefore as we look back towards the big bang should we not observe a very high density of galaxies? Why aren't we surrounded by a bright glow and why is the night sky dark? (no answers) My sceptical friend does not believe men have walked on the moon. How can I convince him conclusively? (no answers) What should be invented before it's too late? (no answers) Why do military trucks invariably have single tyres on the rear wheels, whereas regular commercial lorries have double tyres on the back? (no answers) Is there any evidence that shows that the human race is continuing to evolve? (no answers) Why can a Beagle and a Poodle mate but not a Cardinal and a Blue Jay? (no answers) If I was in a situation where I had no access to medicine, how easy woud it be to make penicillin out of bread mould? (no answers) We have heard a lot about global warming melting the Artic and Antarctic ice and raising sea levels. BUT - my recollection from school is that when ice in water melts, the water level actually goes down. So sea ice melts, the water level goes down, ice over land melts, the sea level rises. A lot of Arctic ice is sea ice, while Antarctic ice is over land - can anyone tell me the proportion of sea ice to land ice? (6 answers) Is there any difference between the vaginal contractions termed 'pelvic floor excercises' and the vaginal contractions experienced during female orgasm? If not, why is this never mentioned in health literature, and why are vibrators not free on the NHS? (one answer) Since yawning can be triggered by excess carbon dioxide in the lungs, as the globe warms, will the global yawn frequency increase? (one answer) Is there a legitimate reason for diesel to be so much more expensive than petrol or is it just another example of consumer exploitation as I suspect? (5 answers) When in Spain recently I saw a fascinating little creature fishing for nectar in some flowers. It looked exactly like a hummingbird. I've since learned that it was in fact a Hummingbird Hawkmoth - a type of bee. I can see the evolutionary advantage of looking like a bird with so many other insectiverous birds around but I've also learned that hummingbirds are native to South America and the insect to Asia and Europe. So how did this little beastie evolve to look just like a species from another continent which it (and more importantly, its potential predators) could have no experience of? (2 answers) Whenever one of our children or visiting friends hurts themselves in a fall, my wife and I, like our parents before us, check for fractures by asking "Can you bend it?" If they can bend, then they are ok. Does this test have any medical or scientific basis? Or could they all be running around with multiple fractures? (3 answers) Was the air that dinosaurs breathed different than from today and if it was, how difficult would humans of today find it to breathe in that atmosphere ? (4 answers) How long could an astronaut survive on a space walk, wearing nothing but a birthday suit and holding his breath? What would be the cause of his eventual demise? (8 answers) I have made an interesting discovery. I placed some dead flashlight batteries in a freezer and left them there for some weeks. After being taken out and even before being warmed to room temperature, they worked for a long time (albeit a little shorter than when new). Now I do this with all non-rechargeable batteries that I buy. Have I really discovered something new? Should it be called "The Alexander Brown Effect"? What is the explanation for this phenomenon? (3 answers)  |
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