click image to make it gigantic This false-color composite image, constructed from data obtained by NASA's Cassini spacecraft, shows Saturn's rings and southern hemisphere. The composite image was made from 65 individual observations by Cassini's visual and infrared mapping spectrometer in the...
Cycling crash helmets have just one purpose: to protect the cyclist's head. But only completely damage-free helmets do the job properly. It is therefore recommendable to buy a new one every now and again, but nobody wants to throw away a perfectly good helmet. It would be better to know for...
Assuming a 20-mile round trip to a store on Black Friday, one study found Cyber Monday emits 50 times less carbon through the miracles of online shopping. [GigaOM Pro via Treehugger]
After I switched on the car i opened caps of my battery. Then I found that there are some bubbles(I assume a gas) emitting from the shells. Some says, that happens due to a malfunction in battery charging system and it will cause my battery to be overcharged and damaged. Is this true?
My PC emits machine-like sound when I turn it on. It sounds like a machine, but last only less than 30 seconds.
I guess it's due to my PC often gets electrical shut down.
It's it really bad for PC to be turned off suddenly?
What is the long term effect?
What should I do?
Thanks.