Hi, everybody. One of the things that makes America so strong is our spirit of innovation. Our drive to invent and harness new technologies to tackle our greatest challenges. It's how we won the r
So to test this we used a machine that we have called the Blicket Detector. 为了证明这个观点，我们用了一个叫做玩具侦探的仪器。 This is a box that lights up and plays music when you put some things on it and not others. 如果你在这个
I want to step back, and I want to bring up the concept of negative emissions again. 我想退一步，再次提出负排放的概念。 Negative emissions require that the CO2 separated be permanently removed from the atmosphere fore
Mr. Speaker, yesterday, an act of terrorism tried to silence our democracy. But today, we meet as normal – as generations have done before us, and as future generations will continue to do – to delive
