Time travel is a popular theme in the science fiction and fantasy genre. But did you know that real scientist are trying to find traces of time travel with serious scientific methods? 894 more words
Tags » Science
If we have put too much CO2 into the air, wouldn’t it make sense to find ways to remove it again? Well, yes: it would. But sadly it isn’t likely to be easy or cheap and, according to new research, it isn’t an adequate “solution” to the problems of climate change. 51 more words
If the sun disappeared, when would we know about it?
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Here’s an insightful thought experiment: if the sun suddenly disappeared, how would we know – by seeing its light go out, or by feeling its gravitational pull vanish?