Major milestone: First two ALMA telescope antennas linked

On 30 April, the team observed the first "interferometric fringes" of an astronomical source by linking two 12-metre diameter ALMA antennas, together with the other critical parts of the system. Mars was chosen as a suitable ...

'Collapse' in semiconductor demand hits ASML

Dutch computer chip equipment maker ASML on Wednesday announced net losses for the first quarter after a collapse in sales, but said it saw signs of improving market conditions.

How to choose a surge protector

Question: The consensus is that it's proper to insert surge protectors between the power source and the computer. The question is, how big? How many joules? Is it true that they "wear out" in a year or so?

page 8 from 8