单词:quasi-rotation
单词:quasi-rotation 相关文章
by Jason Marshall Weve now talked about three methods for calculating average values: the mean, median, and mode (affectionately known as the three Ms). So, are we done? Is that everything we could ever want to know about interpreting average values?
The rotation construction of two sections of a giant super-tonnage bridge on the Shantou-Kunshan highway in China's Guangdong Province has been completed on Friday morning. The two sections of the bridge also span across the Beijing-Guangzhou high-sp
Galactic Rotation 银河系自转 Astronomers calculate there is ten times more matter in our Milky Way galaxy than we can actually see. Discover how the orbital motions of stars in the galaxy reveal dark matter -- on today's Earth and Sky. JB: I'm Joel
This is Scientific American's 60-Second Science. I'm Steve Mirsky. Got a minute? The 2011 Nobel Prize in chemistry goes to Daniel Schechtman of the TechnionIsrael Institute of Technology in Haifa. Schechtman discovered what are called quasicrystals.
Scientists around the world predict that climate change will have dramatic effects on agriculture in the coming decades. So, too, will pests and pesticides, the loss of species and the need to increase food production for a growing population. Resear
MELISSA BLOCK, HOST: Time to take the temperature of music on public radio stations across the country this month. Well, it's hot. Here's what the music mavens have put into Heavy Rotation. JESSE MENENDEZ, BYLINE: My name is Jesse Menendez. I'm a hos