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Matter from Light?


gftChris

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http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/newssummary/news_16-5-2014-15-32-44

 

Less political, more scientific for those interested. Some guys at my alma mater have apparently come up with an experiment to collide two photons and produce an electron and a positron.

 

So where did matter come from? Light, clearly.

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http://www3.imperial.ac.uk/newsandeventspggrp/imperialcollege/newssummary/news_16-5-2014-15-32-44

 

Less political, more scientific for those interested. Some guys at my alma mater have apparently come up with an experiment to collide two photons and produce an electron and a positron.

 

So where did matter come from? Light, clearly.

So now matter can be created and destroyed?

WSS

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Not sure about destroyed. This is a theoretical experiment dreamt up in 1934 - we've only just figured out how we can conduct the experiment, and are attempting to prove it.

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Conservation of mass or energy or something I'm not sure about. ....

(IOW no fucking clue. . :))

WSS

Presumably the light energy would be transformed to heat energy, making these particles extremely hot. We've known for a while from the double slit experiment (I think?) that light can behave like a particle as well as a wave, in the same way that matter can, so light becoming matter I guess makes some sort of sense? Either way, cool stuff, it could go some way to answering the 'where did matter come from?' questions relating to the big bang once and for all, without saying "this is our best guess currently"

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To shed a little light on the subject,

 

"what does it matter now?" B)

85./10

Not bad, but if you'd just gone with something like:

"Hopefully it'll shed a little light on the matter"

You would have got a 10/10.

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More science being awesome:

 

http://www.iflscience.com/technology/solar-roads-could-power-entire-country

 

 

 

A small US-based company called Solar Roadways are developing a solar road surface that, if installed nationwide, has the potential to produce more renewable energy than the entire country uses.
Read more at http://www.iflscience.com/technology/solar-roads-could-power-entire-country#gbupyrQSOb1zE3HK.99
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