Time Dilation Video

submitted by: nsf
Is time different to observers moving at different speeds? For more information, see the World Year of Physics 2005 feature. http://www.nsf.gov/news/mmg/mmg_disp.cfm?med_id=55655&from=vid A RealPlayer streaming version of the video also is available. To see the clip with the captions on, you will need to select Tools > Preferences > Content > Use Supplemental text captioning when available, or deselect it if you do not wish to see the captions. Then re-start the video....

Amazing Earth 2

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 2.

Amazing Earth 1

submitted by: scivee-team

A documentary about volcanic eruptions, their causes and effects on Earth and the geological implications of those events in history and in the future - Part 1.

Oricalco - thermal shape memory fabric

submitted by: GZE
The first orthogonal weaving example of Nitinol. The 'Thermal Shape Memory Alloy' is characterized by its extraordinary ability to recover any shape, pre-programmed, upon heating. Until today this light weight alloy with about 50% Titanium inside has been used in advanced sectors like space and recently in medical applications. Moreover this fabric is the first for which the shape memory alloy, named Nitinol, was weaved orthogonally - that is to say that Oricalco is the first fabric with...

Earth's Destiny

submitted by: scivee-team

A possible outlook for Planet Earth in a few billion years.What will happen to Planet Earth in a few billion years?

Studying the Sun

submitted by: scivee-team

Observing the sun - from Galileo's time to today.