Discussion in 'General Discussion' started by Poho, Nov 7, 2007.
If matter can be converted to energy, can energy be converted to matter? That would be awesome!
In a word.
In theory, I have no idea if it's been done in practise...
*EDIT* And if you think about it, cells require energy in order to split and so proliferate, so you yourself are energy becoming matter*Edit*...
I'm more curious as to why we drive in a parkway and park in a driveway.
(Science is way over my head.)
Because if you do it the other way you have to deal with insurance companies and hospitals and lawyers all of a sudden. Who wants that, besides my auto body guy?
Yes, but as you get a huge amount of energy from a bit of matter it will take a huge amount of energy to create a bit of matter - where do you think matter came from at the start of the universe? - Condensing energy.
Well, if you go by e = mc^2 and solve for m,
m = e/c^2
So there you go. If you can divide energy by the square product of the speed of light, you can make energy into mass. Good luck with that.
Yes. One phenomenon is called pair production, where an electron and positron are generated from the interaction of a high-energy photon with an atomic nucleus - and when I say high-energy, I mean gamma radiation. It's the direct opposite of electron-positron annihilation, which is just a form of matter/antimatter annihilation, and if you've read enough science fiction, you know that puts out gamma radiation like nobody's business. It was first observed in experiment in 1933.
And then there's photosynthesis, which is a more indirect way of converting radiation into mass - most of the mass gained is through ingestion of CO2 and other chemicals, but light energy is used to power the reactions that turn those chemicals into nutrients the plant can live on. No light, no reactions, no nutrients, dead plant.
Parkways originally got their name because they all led to state parks.
What about why a shipment goes by car, and cargo goes by ship?
Aw, beat me to it! j/k
And this is how Positron Emission Tomography (PET) works! Yaaaaaay.
Or why it's called a building when it's already built.
I am loving seeing a whole column of scary-black-man avatars.
Also, I've said it before, but I'll repeat it here: Phy is short for physics.
I thought it was short for phyrric?
Why is it called Rhode Island when it is not Rhode, nor an island?
Officially named the State of Rhode Island and Providence Plantations, "Providence Plantations" refers to the mainland, while "Rhode Island" was the 17th and 18th century name for Aquidneck Island now composed of the city of Newport, and the towns of Middletown and Portsmouth.
My victories are often full of woe...
Separate names with a comma.