A televised election debate.
egomaniacs!
Kanye West
Nothing "happens". They meet, and the rays continue merrily along their ways, never to meet again!
A tsunami happens.
nkln
because of two cloud meet each other
Earthquakes, tsunamis, tornados
They repel one another.
They do not meet at right angles to one another.
Nothing happens between the sperm. Each tries to fertilise the ovum.
When two waves meet, wave interference occurs, causing them both to take on a different shape at the moment they meet.
When the two waves meet, a wave interference occurs, causing them both to take on a different shape at the moment they meet.