Recent content by branebrain

Labguy, Good point. I should have recommended simple projection without the eyepiece. If you have a goto telescope you can center and follow the sun projected onto a white card and damage can be avoided. bb

Hello marcus, Here are three links that may help regarding the stochastic gravitational background and its signature on the CMB: http://arxiv.org/pdf/astro-ph/0302012 http://arxiv.org/pdf/astro-ph/0112381 http://nedwww.ipac.caltech.edu/level5/March03/Lineweaver/Lineweaver6.html...

Hi Wimm, A very simple solar viewer is simply a small hole poked in a piece of cardboard. If you move the cardboard away from the surface it is projecting onto, you will see a focused image of the surface of the sun. Stray light makes it difficult to see much detail though so a box with a pin...

Hello folks, I'm new to this fine forum and wondered if anyone here knows which present or future spacecraft (perhaps even balloon borne mission?) are capable of discriminating the effects of the strongly blue shifted gravitational spectrum that should be evident in the CMB as the Ekpyrotic...