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Let’s talk about the dark night. Yes this post is about Batman.
Our common assumption is that the night sky is supposed to be dark with only few dots of light.
But then, aren’t there supposed to billions upon billions of stars in the night sky emitting light. Yes, they are very far away, but, there is nothing stopping (like air or glass) the light from reaching us. So, shouldn’t all those stars make the night sky (very) bright and not dark ?
This is actually called Olbers’
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“Anyone who has never made a mistake has never tried anything new.” -Albert Einstein Back when Einstein first proposed his theory of General Relativity, his revolutionary picture of the Universe was met with a mix of curiosity, awe, and intense skepticism. It isn’t every day that your most cherished of all physical theories — the…
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(This piece originally appeared in the “Will We Ever?” column at BBC Future. I added some commentary at the end and changed the accompanying image, but otherwise left everything the same, including UK spelling.) In many ways, it’s strange to us humans that the Universe should be the age it is. The Universe – by [...]
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Yesterday was the first ever TEDxCERN event. I was lucky enough to take part as a volunteer in the social media team. [1] I spent the day live-tweeting and live-blogging about the event, as well as generally running around helping speakers, stage managers and so on. It was a lot of fun, and got me thinking about lots of new ideas. Credit: Alex Brown If you go down to the woods today... For those of you who don't know,... Read more
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“All our sweetest hours fly the fastest.” -Virgil If you’ve been around the block once or twice, you know that the speed of light in a vacuum — 299,792,458 meters-per-second — is the absolute maximum speed that any form of energy in the Universe can travel at. In shorthand, this speed is known as c to…
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This video - The beginning of the universe, for beginners – is the premiere of a series of five, first of their kind, collaborations between CERN and TED Ed. The series covers the origins of the universe, dark matter, antimatter, big … Continue reading →
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“Despite its name, the big bang theory is not really a theory of a bang at all. It is really only a theory of the aftermath of a bang.” -Alan Guth So you finally understand it. The Big Bang tells us that the Universe was hotter, denser, and expanding at a faster rate in the…
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“The cosmos is all that is or ever was or ever will be. Our feeblest contemplations of the Cosmos stir us—there is a tingling in the spine, a catch in the voice, a faint sensation, as if a distant memory, or falling from a height. We know we are approaching the greatest of mysteries.” -Carl…
