Before that time, the universe was an opaque fog, so hot and dense that photons could not travel very far before
bumping into other particles and changing direction.
Not exact matches
Through a process known as «squeeze expulsion,»
particles big (you and your pack) and small (rocks, chunks of snow) knock
into each
other at the bottom of the avalanche, where the most impacts occur, and eventually get
bumped up to the top.
Deep underground, uranium atoms in rocks undergo radioactive decay, sending off alpha
particles — two protons and two neutrons — that can
bump into other molecules and change them.
Schrödinger discovered it through his newly formed quantum theory, when he examined the mathematical descriptions of two quantum
particles that
bump into one
other.
The gravity of the galaxy clusters also gathers up gas and the gas heats up from the friction of the intergalactic gas
particles bumping into each
other.
But the
particles will
bump into each
other and the rotational energy will kick the molecules around until the energy is evenly distributed in the 5 degrees of freedom.