No, we're not talking about former Senator Ted Stevens's clumsy description of the Internet; this article from the Stanford School of Medicine Web site instead describes the wildly cool pneumatic tube system used by Stanford Hospital staff to send lab samples around at speeds up to 25 feet (7.6 m) per second - that's roughly 18 miles (30 km) per hour. Pneumatic tube systems were cutting edge communication technology way back in the 19th century, but when it comes to transporting physical objects, they retain their utility even in today's networked age. follow link
How Loud Are Your Mac's Fans?
When they get hot, Macs turn on various internal fans to keep components cool. The noise can be annoying, but just how loud is it? If you have an iOS device with a built-in microphone, you can download one of many free sound meter apps (search on
decibel in the App Store) and see if you're subjecting your ears to a truly unreasonable noise level.
- ExtraBITS for 25 January 2010 (24 Jan 10)
It Really Is a "Series of Tubes"