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You can’t watch the news, turn on the radio, or open a newspaper these days without hearing about global warming. It seems our future is looking rather warmish, and many of our modern conveniences may be to blame.
I’m not disputing the fact, but at the same time I’ve never had it explained to me precisely>
The setup to the classic Melting Ice Cube problem goes something like this: “Fifty grams of ice are melting in a 100-mililiter cup of 35-degree water.” Using simple principles of energy transfer, we can estimate what the final temperature of the water will be, and how much energy transfer was required to make>
The discovery of a giant fossilised claw from an ancient sea scorpion indicates that when alive it would have been about two and a half meters long, much taller than the average man.
This find, from rocks 390 million years old, suggests that spiders, insects, crabs and similar creatures were much larger in the>
Dating can be a difficult task, a daunting challenge for men and women the world over. It becomes especially difficult when what you're trying to date is extremely ancient. I'm not talking about romantic dates with seniors though, I don't have many tips there I'm afraid, although good personal hygiene and being a>
Every organism needs nitrogen to survive and grow and many organisms do not have the ability to obtain nitrogen from molecular nitrogen (N2), the major component in the atmosphere because they lack the nitrogen fixation pathway and have to rely on supply of nitrogen that has been fixed by others. The availability>
