【Native Speaker每日综合训练—30系列】【30-16】科技

guagua13

我我也要首页！谢谢胖胖翔 o(^▽^)o

Speaker
the brain has to be intact and switched on --> need tools
optogenetics --> control brain by using light
challenge: altering the genes, have to add genetic materials (risks); hard to get the light to go deep; how we can control the cells one at a time or ten at a time but extremely specifically
We might be able to help people with Parkinson's disease, depression, or schizophrenia.

Speed
Time2  2:26:85  300
Agriculture was king in New England before the 19th century. Geographers found "agropolis" in New England using a laser-guided mapping technique. Demarcations (划分, 界限) had barely changed over the centuries.
Time3  2:17:08  275
Using LiDAR, we can generate a complete new set of data with relatively little effort. Studying vegetation (植被) dynamics could create a living story of the ecosystem.
Time4  2:35:20  327
In the recent findings are five new rocky planets that have ranging in size from 10 to 80 percent larger than Earth. Two of them are both 40% larger in size than Earth and have a density similar to lead. The planets are too hot for life.
The higher the mass of the planet, the greater the gravitational tug on the star and hence the greater the wobble.
Time5  3:29:13  443
With the mass and diameter in hand, scientists can determine the density of the planets. TTV can be used to determine the mass and thus the density of a planet. We are closer to finding a habitable environment beyond the solar system.
Time6  2:26:44  333
In South Africa, people found that a freshwater fish leaps to prey on birds in flight (=on the wing).

Obstacle  5:31:90  791
A math model can be used to calculate the ideal timing of a surprise cyberattck. (cyber网络的, 计算机的)
A country should not feel safe when things are quiet. Enemies are probably waiting for the right time to attack. The shelf life of weapons plays an important role in the rational timing of an attack. If the enemy knows that your vulnerabilities will remain unfixed, they will assume their weapon will have a longer shelf life.
Is using offensive resources really productive? It shouldn't take 15 years to develop a viable strategy of cyberconflict deterrence.

guagua13

主页菌 发表于 2014-1-16 07:44
这。。。这是楼上上的小号么，上首页就算了，还两个人一起上，一起被催，也太雷同了吧！！！！ ...

哈哈哈   补作业来咯