18814670
submission
Haffner writes:
Protests in Cairo, Egypt have now reached the tens of thousands. Police have deployed water cannons and tear gas. I am writing this live from Cairo, where I witnessed a throng of 1000-3000 march towards Tahrir Square in downtown Cairo. I also witnessed 300-500 protesting on one of the bridges heading downtown. Most importantly, twitter has been blocked by many national carriers. Other updating links include http://www.guardian.co.uk/global/blog/2011/jan/25/middleeast-tunisia and https://www.nytimes.com/2011/01/26/world/middleeast/26egypt.html?_r=2&src=twrhp
18788224
submission
Haffner writes:
An article on physorg.com details what could be the first cold fusion reactor.
"Italian scientists Andrea Rossi and Sergio Focardi of the University of Bologna announced that they developed a cold fusion device capable of producing 12,400 W of heat power with an input of just 400 W....when the atomic nuclei of nickel and hydrogen are fused in their reactor, the reaction produces copper and a large amount of energy. The reactor uses less than 1 gram of hydrogen and starts with about 1,000 W of electricity, which is reduced to 400 W after a few minutes. Every minute, the reaction can convert 292 grams of 20C water into dry steam at about 101C. Since raising the temperature of water by 80C and converting it to steam requires about 12,400 W of power, the experiment provides a power gain of 12,400/400 = 31."
15245318
submission
Haffner writes:
Ars Technica has an article detailing the difference between ISP advertised "up to x Mbps" speeds and the actual speeds, in addition to some possible solutions. They find that on average, the advertised speeds were "up to 6.7 Mbps" while the real median was 3 Mbps and the mean was 4 Mbps. This implies that ISPs were falsely advertising by at least a factor of 50%.
