Recent content by marts

Hi todor943 I did something very similar about a year ago. So you might consider sending me a pm if you need detailed information or photos. As a filament you might consider simply smashing up a halogen bulb. It will of couse not give of a focused beam but building a small wehnelt cylinder...

Hi everybody When fast neutrons hit isolated protons (eg. hydrogen cores in paraffin) the neutrons kinetic energy is transferred to the proton (as they have aproximatly the same mass), which is detectable by a geiger counter, while the neutron is stoped. Thats how far I got after several...

Thanks Doc Al, that really sets my mind free again. I had been searching for days without any descent result, so I didn't expect to get such a quick and precise answer at all.

Hi all "The Huygens-principle recognizes that each point of an advancing wave front is in fact the center of a fresh disturbance and the source of a new train of waves; and that the advancing wave as a whole may be regarded as the sum of all the secondary waves arising from points in the...