单词:aplanatic refraction
单词:aplanatic refraction 相关文章
I'm Mark Smith at a snowbound White House where President Barack Obama is trying to unthaw his domestic agenda in a new round of talks with Democratic and Republican leaders. And a short time ago, he paid a surprise visit to the White House briefing
The Blurry World Underwater When you open your eyes underwater, things look blurry, but with goggles, everything looks perfectly clear. Why cant we landlubbers focus underwater without goggles? First, we need to explore how our eyes focus when were h
By Kurt Achin Seoul 13 June 2008 Japan says it is lifting some of the sanctions it imposed on North Korea following Pyongyang's nuclear test about two years ago. The announcement comes amid apparent progress in talks on the North's abduction of Japa
Forlan rules out move to Argentina's Independiente RIO DE JANEIRO, Oct. 28 (Xinhua) -- Star Uruguayan striker Diego Forlan has ruled out a possible return to Argentina's Independiente at the end of the year. Forlan reaffirmed his commitment to Brazil
PORTO ALEGRE, Jan. 6 (Xinhua) -- Uruguay international striker Diego Forlan has admitted he endured a tough start to his career at Brazilian club Internacional. Forlan joined the club six months ago but failed to recapture the form that won him the b
RIO DE JANEIRO, Feb. 7 (Xinhua) -- Uruguay striker Diego Forlan could return to Internacional's starting line-up for the Brazilian club's fixture against Pelotas in the Campeonato Gaucho on Saturday. Forlan was used as a 70th-minute substitute in Uru