문서 (149)
-
- 실용영어회화집 step 1, 2 [3]
- 실용영어회화집 step 1, 2 실용영어회화집_Step1.hwp 실용영어회화집_Step1.pdf 실용영어회화집_step2.hwp 실용영어회화집_Step2.pdf
-
- How to Make Your Own Solar Water Heater
- Solar water heaters are used around the world and are not very difficult to build. The system we are going to describe is based on a design developed some years ago in Afghanistan. Since then, it has ...
-
- Chimamanda Adichie: The danger of a single story
- 0:11I'm a storyteller. And I would like to tell you a few personal stories about what I like to call "the danger of the single story." I grew up on a university campus in eastern Nigeria. My mother sa...
-
- Living in a World With Facial Recognition
- A new study looks at privacy in a world where computers can increasingly recognize faces in a crowd or online. Alessandro Acquisti at Carnegie Mellon University's Heinz College in Pittsburgh, Pennsylv...
-
- Shane Koyczan: 'To This Day' ... for the bullied and beautiful
- By turn hilarious and haunting, poet Shane Koyczan puts his finger on the pulse of what it's like to be young and ... different. "To This Day," his spoken-word poem about bullying, captivated millions...
-
- Three Sisters Follow in the Flight Path of a Family of Pilots
- The Smith family of Washington State loves to fly. KELLY SMITH: "My grandfather, however, he was a lieutenant colonel in the Army Air Corps and he flew everything. He flew helicopters, large aircraft,...
-
- Taking a Closer Look at the Future of Video Conferencing
- I'm Alex Villarreal with the VOA Special English Technology Report, from http://voaspecialenglish.com |http://facebook.com/voalearningenglish High-quality systems used in video conferencing are called...
-
- Vijay Kumar: Robots that fly ... and cooperate
- In his lab at Penn, Vijay Kumar and his team build flying quadrotors, small, agile robots that swarm, sense each other, and form ad hoc teams -- for construction, surveying disasters and far more. Goo...
-
- Educational Technology: Not Just Computers
- This is the VOA Special English Education Report, fromhttp://voaspecialenglish.com We received a question from a listener about how American schools use educational technology. There is not a simple a...
-
- 'Passive' Homes Save Energy, Money
- This is the VOA Special English Economics Report, fromhttp://voaspecialenglish.com |http://facebook.com/voalearningenglish Heating and cooling equipment are the biggest users of energy in American hom...
English
한국어
