Physics, Pixelated
How Did the First Elements Form? Big Bang Nucle...
Almost all the hydrogen and helium in the universe was made in its first few minutes. Here is how that cosmic kitchen worked, how we check it, and the two...
How Did the First Elements Form? Big Bang Nucle...
Almost all the hydrogen and helium in the universe was made in its first few minutes. Here is how that cosmic kitchen worked, how we check it, and the two...
What Holds the Nucleus Together? The Strong For...
Protons repel each other, yet nuclei hold together. The answer is the strong force, first pictured by Hideki Yukawa as an exchange of mesons and now understood through quarks and...
What Holds the Nucleus Together? The Strong For...
Protons repel each other, yet nuclei hold together. The answer is the strong force, first pictured by Hideki Yukawa as an exchange of mesons and now understood through quarks and...
Why Is the Speed of Light the Limit? Relativity...
Nothing with mass can reach the speed of light, and no signal can beat it. Here is why relativity says so, how muons and GPS satellites prove it every day,...
Why Is the Speed of Light the Limit? Relativity...
Nothing with mass can reach the speed of light, and no signal can beat it. Here is why relativity says so, how muons and GPS satellites prove it every day,...
Do Black Holes Evaporate? Hawking Radiation, th...
In 1974 Stephen Hawking predicted that black holes are not completely black: they should glow faintly and slowly evaporate. The prediction is widely accepted in theory, has never been observed...
Do Black Holes Evaporate? Hawking Radiation, th...
In 1974 Stephen Hawking predicted that black holes are not completely black: they should glow faintly and slowly evaporate. The prediction is widely accepted in theory, has never been observed...
What Happens at Absolute Zero? Why −273.15 °C C...
Absolute zero is the bottom of the temperature scale, but physics says you can never quite get there. On the way down, matter turns superfluid, expels magnetic fields and piles...
What Happens at Absolute Zero? Why −273.15 °C C...
Absolute zero is the bottom of the temperature scale, but physics says you can never quite get there. On the way down, matter turns superfluid, expels magnetic fields and piles...
Why Does Time Only Go Forward? Entropy and the ...
The basic laws of motion work the same forwards and backwards, yet eggs never unscramble. The answer runs through entropy, probability and the state of the early universe, and part...
Why Does Time Only Go Forward? Entropy and the ...
The basic laws of motion work the same forwards and backwards, yet eggs never unscramble. The answer runs through entropy, probability and the state of the early universe, and part...