The US Airforce is said to have invented a battery lasting 30 years(!). It is made from some very weak radioactive material (it’s still enough to power a laptop) for that time. The news has been spread by www.nextenergynews.com and I don’t know if to believe it or not. It has not yet been published by any major news source. It is still a gossip.
MSNBC.com has published some news in 2005 that researchers have made a battery lasting 10 years and the radioactive material would be tritium, a radioactive gas.
Anyway, I can’t imagine myself holding a laptop on my feet, browsing and blogging and at the same time knowing my feet are at a distance of a few inches from a radioactive source. 🙂 No matter how weak it is, how do I know it couldn’t provoke cancer or other disease, related to radioactive exposure. What are they going to cover the material in? Lead? What if I break that battery? What if I tear the lead? What if my kid does that, not knowing what’s inside? What if every house has such a battery, and what if the cumulated effects of all the batteries turned the world into a BIG Chernobyl?
I don’t know if such device will be released into the already-toxic battery market, or if I’m being too scared by nuclear activity. It would last longer, but what would be the effects? Would it be worth the sacrifice?