Energy storage in capacitors
A nice mathematical and practical comparison of Battery and Capacitor stored energy.
Super and ultra capacitors have a way to go.
A 3000F 2.7v from Electronic Goldmine can hold 10.94k Joules of energy: (1/2)*C*V^2
This is only equivalent to the energy stored in a .95Ah 3.2v Lithium Iron Phosphate (LiFeo4) Battery: V*Ah*3600.
Lets hope that Eestor are not vapor -ware.
Monday, 29 November 2010
Sunday, 28 November 2010
Wednesday, 17 November 2010
Optus Cable upgrade to DOCSIS 3. Wahoo.
Before:
Using Free Download Manager that downloads files in multiple parts, I can get about 960kB/s or 7.68Mb/s
After the upgrade, I get the following. 7 x as fast!
Using parallel downloads I now get about 5MB/s Thats about 5 times what I had before. All for the same price I was paying. Thank you Optus.
Think I will just back up the internet.
This is what I get from the Optus site.
