Monthly Archives: April 2015

24Apr 2015

Ok, ok, I should not be joking about the name. Safety is a serious matter. But let’s talk honestly today about dishonesty.   Ultrafire is a China-based vendor of 18650 lithium-ion cells.  One can buy their 18650 cells from eBay, Amazon and lots of other web-based stores. I was intrigued last week when I saw on eBay […]

06Apr 2015

NASA landed in July 1969 the Apollo 11 on the surface of the moon. Along with the famed astronauts was the Apollo Guidance Computer (AGC), a 1960s-era computer to navigate the spaceship to the moon and back.  A reliable machine for its time, it stands today only as a relic. A modern smartphone, for example […]