Recent content by scupydog

Thx for the info Tim.

Hi https://www.physicsforums.com/member.php?u=332254 The reason i joined PF 5 years ago was with a similar question i had after finding this site http://www.besslerwheel.com/ This site concerns a perpetual motion machine. But after talking to the people on PF i now realize that there can be...

Just read this..http://www.world-nuclear-news.org/RS_Venting_at_Fukushima_Daiichi_3_1303111.html What are the implications of pumping sea water into the reactor, as this seems be a last resort?

Hi The shapiro effect... i'll look into that. Thx.

Hi. Thx so much for this info, i will read now.

Hi. Does the light from a lensed object take longer to reach us, than the light from an unlensed object at the same distance. I mean because the light from a lensed object has a curved path. Thx. Dave...

Thx for reply, i think i have found what i was looking for

Does a gravitational lense have a focal point, like a nomal lense but as a focal point sphere/horizon. if so is there a formula that relates the mass of the GL with the radius of its focal horizon. Happy xmas.

Thx for your answers, I'm still trying to find out what it was from searching the web. It might have to have it shifted into the unexplained file..

Looks to me like a band of water that is separating the still ice from the rotating ice. What gets me though, is, has this area of water any properties that differ from the normal (ice, water, steam) solid, liquid, gas? I mean, why is the band so wide if its only friction that's wearing...

After some very strong winds last night here, in the U.K. There is an oily type residue which is visible on external glass surfaces ie windscreens. This effect has happened over a 25 mile radius as i know off. Could this be any thing to with hurricane tomas, lifting oil from the surface in the...

Hi, Welcome to PF, Whats your main area of interest?

Thx for your reply Johnathan, i never thought to look on there. lots of interesting stuff.

Hello. In the attached a diagram there are 2 stars on the left, the upper star is the apparent position as veiwed from Earth and the lower star the true position. The central star is the Sun Could anyone give or direct me to an equation for the angle by which the light is deflected aº in...

This only happens when the atom has an energy level that matches the energy level of the photon. If the energylevel does not match the photon energy, it does not go back to the light. The energy instead goes toward increasing the motion of the atoms, which causes the material to heat up