NASA Contractor Shows New Technology Despite the daunting debt problems faced by the U.S. government, many federal operations, including the Defense Department and the space agency, NASA, need the latest technology to carry out their missions. That t...
EXPLORATIONS - Three Innovators Who Changed the History of Sound and Communication Technologies STEVE EMBER: Im Steve Ember. BARBARA KLEIN: And Im Barbara Klein with the VOA Special English program EXPLORATIONS. Today we tell about three inventors wh...
I once read an essay by Joseph Epstein in which he describes the glee and suspense in watching a stranger read his essay． Its happened to many novelists too the coincidental （dreamed－about） situation where you encounter a stranger reading pag...
Websites recommendation [00:02.29]优秀网站 [00:04.57]This website caught our eye.Despair Incorporated,has a line of posters it calls de-motivators like this one called apathy. [00:09.18]绝望公司的一个网站吸引了我们的注意力，上面...
