Halliburton Responds to Cement Test Claims

Oil services firm Halliburton (HAL) has responded to claims that it was aware of test results showing that the cement to be used as a plug for the bottom of the Macondo oil well was unstable.

Federal investigators sent a letter Thursday indicating tha…

IBM Developing Transistor to Reduce ‘Vampire Energy’

International Business Machines (IBM) is searching for a method that will cut devices’ power consumption by 90% and reduce so-called vampire energy – power used by machines when they are turned off.

IBM’s Zurich lab is developing a transistor to regu…