Cosmologists

[Zuts]

Cosmologists are easy to shop for at christmas

[xelasnave]

I know it is a joke but that is a very conservative number of neutrinos....

I found this...

The number of particles crossing a 1 m2 plane is just the number density (in #/m^3) times the velocity (in m/s). There are 150,000,000 neutrinos per cubic meter, and they're moving at about 3,935,435.55 meters per second, for a grand total of 5.90315332 * 1014 crossing a one-meter square area per second. Quite a lot!

The only problem is I can not track down who said this first ...

I guess the up side is you would not have to give away very large box to give a couple of

million:lol:

Alex