单词:PIR sensor
单词:PIR sensor 相关文章
INTRODUCTION TO ACT I Today on TUNING IN THE U.S.A., were in Denver, Colorado near the great Rocky Mountains. Robbie and Grandpa have come to join Richard for a few days. Tonight, Richard will sleep at a campground, but Robbie and Grandpa are going t
By Behnam Nateghi Washington 30 April 2008 A New York art show chronicles the impact of the feminist movement on art between 1965 and 1980. The show features works by artists from around the world and includes paintings, sculptures and performance ar
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Real-time information about whats happening in our bodies at the cellular level could be crucial for fighting cancer and other life-threatening conditi
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. Electronics come in all shapes and sizesbut theres been a limit on their flexibility. Now, researchers say theyve created electronics that can be shape
One of the most exquisite heat sensors in the worldits not in some government lab. It's in the head of a snake. The pit viper, to be specific. They're incredibly sensitive. They beat any of the synthetic counterparts, even the most expensive semicond
This is Scientific American's 60-Second Science. I'm Cynthia Graber. This will just take a minute. It's April 15th. Like many people around the country, you might be feeling your blood pressure rise as you deal with everyone's favorite activityfiling
By Amanda Cassandra New York 01 November 2006 Experts in the medical and art communities recently gathered in New York to commemorate the 100th anniversary of the identification of Alzheimer's disease, a progressive brain disorder that gradually des
Paul Simon's new album
AMERICAN MOSAIC - Bicycling Brothers Search America for Community Spirit DOUG JOHNSON: Welcome to AMERICAN MOSAIC in VOA Special English. (MUSIC) I'm Doug Johnson. On our program this week, we play new music from Moby And we answer questions about ge
By Nico Gnecchi Dadaab, Kenya 20 September 2006 Former rebel leader and self-proclaimed spiritual medium Alice Lakwena said she is ready to return home to Uganda after years of exile in a refugee camp in northern Kenya. The charasmatic leader, who c
There was a day, about 10 years ago, when I asked a friend to hold a baby dinosaur robot upside down. 大概10年前的一天,我让一个朋友头朝下地握持一个小恐龙机器人。 It was this toy called a Pleo that I had ordered, and I wa
Well, I was born with a rare visual condition called achromatopsia, which is total color blindness, 我出生在一个色彩极少的世界,世界只有明暗之分,这叫做全色盲 so I've never seen color, 所以我不知道什么是颜色, a
Details about Samsung's next big smartwatch have been trickling out for weeks. But now a new report gives us the most detailed look yet Samsung's next wearable. 关于三星下一代智能手表的细节已流传数周。但现下有一份新报告向我
Cat lovers of the world, rejoice! You finally have the chance to understand what your pet is saying thanks to a smart collar that can interpret feline meows and translate it into human speech. Aptly named Catterbox, the collar supposedly has a digita
ROME, May 24 (Xinhua) -- Former AC Milan midfielder Andrea Pirlo joined Turin giants Juventus on a three-year deal on Tuesday. The 32-year-old Italian international had been released from newly-crowned Serie A champions AC Milan on a mutual acceptanc
Rumors of a successor to Xiaomi's 2016 Mi 5 flagship smartphone have begun to heat up, but the company has cooled off any hype by announcing that it will skip Mobile World Congress this year. 虽然关于2016年小米5旗舰版后续型号的传闻越炒
俄罗斯测试现代化的反潜机 MOSCOW, Jan. 5 (Xinhua) -- Russia's Northern Fleet will test a modernized anti-submarine aircraft, the Il-38N, which could be used in the Arctic region, a military official said Sunday. The plane has been enhanced
Reporter: Keeping track of carbohydrate intake, monitoring blood-sugar levels, and injecting insulin is a never-ending cycle for diabetics trying to stay healthy. Labs at Harvard University and MIT have realized major advances in engineering to maint
MILAN, May 18 (Xinhua) -- Midfielder Andrea Pirlo has been confirmed by AC Milan to leave the club after 10 seasons, while both Alessandro Nesta and Filippo Inzaghi have agreed to one-year extensions. The 31-year-old had his contract expired(期满)
If you've ever felt threatened walking home late at night, chances are you've phoned a loved one to make sure they know you're safe. 如果你深夜步行回家时感到害怕,你极有可能向你爱的人打电话,向他们报平安。 But maki