Tuesday, July 23, 2013
Monday, July 15, 2013
Video of space flight on your desktop wallpaper

- Open VLC and select Tools -> Preferences.
- Inside "Preferences" windows, select the "Video" settings on the left.
- Select "DirectX video output" from the "Output" dropdown list.
- Save and restart VLC.
- Play your video, select "Video" menu and then select "DirectX Wallpaper".
- Enjoy ;)
Here are a few awesome videos of Earth from space:
http://www.youtube.com/watch?v=P5_GlAOCHyE
http://www.youtube.com/watch?v=Ip2ZGND1I9Q
Memorable quotes about life from Richard Branson

“I am a great believer in live in saying yes than not saying no, and hopefully making peoples smile and just having fun in live.”
“I am a great believer in working hard and partying hard.”
“I think you should do in live what you think you could make a real difference on”
Gandalf, he just never stops
swinging for 10 hours to Eurovision tune :))))))))))
How to convert redox potential vs NHE to energy in absolute scale
To convert energy from absolute scale [given in electron volts] to redox potential with reference to normal hydrogen electrode (NHE) [in Volts] use this equation:
eU_redox_potential_with_reference_to_NHE / e [V] = -4.5 [eV] - E_Fermi [eV].
Example: Fermi level of Silicon on a vacuum scale is E_Fermi = -4.8 eV, so the corresponding redox potential with reference to NHE is:
U_redox_potential_with_reference_to_NHE = -4.5 - (-4.8) = +0.3 V.
Now, the opposite conversion, to convert redox potential with reference to NHE [in Volts] to energy in absolute scale [in Electron Volts], use this equation:
E_Fermi [eV] = -4.5 [eV] - eU_redox_potential_with_reference_to_NHE / e [V].
Example: Fermi level of Silicon given in redox potential with reference to NHE is +0.3 V, so the Fermi level in absolute scale is:
E_Fermi = -4.5 -0.3 = -4.8 eV.
Use this figure to check your values.
Figure taken from "Zoski, Cynthia G., ed. Handbook of electrochemistry. Access Online via Elsevier, 2007".
Subscribe to:
Comments (Atom)