I've always loved airplanes and flight. The space program was really important to me as a kid. I still have a photo of Armstrong and Aldrin on the mo….

The strange thing about grinding that might surprise many people is that you can grind things and shape them using materials that are generally somew….

We need them. We need scientifically literate voters and taxpayers for the future..

I tell personal stories associated with aspects of the theory, and I hope they are interesting and compelling. I don't feel you're going to change a ….

Evolution is the fundamental idea in all of life science, in all of biology. The key to our being here now is time, 4.54 billion (Earth) years of tim….

I hope climate science becomes the big thing. And then what I want is electrical engineers to solve the world's energy problems, energy distribution ….

You start doing the addictive behavior to feel good and then your receptors get overloaded with dopamine, then you stop doing the addictive thing and….

If you just take a single human and put him or her in the forest he or she might not do very well without some sort of education which he got or she ….

If we raise a generation of students who dont believe in the process of science, who think everything that weve come to know about nature and the uni….

Climate change is a real deal. So, hey deniers - cut it out, and let's get to work..

The world's going to change climatically. We just want to control the change. We want to have a high quality of life for billions of people as we pas….

Millennial voters are very concerned about climate change and will vote for candidates who are planning to address it. But the systems that are in pl….

America has had many other discoverers besides Columbus, but he seems to have made more satisfactory arrangements with the historians than any of the….

If you want grown-ups to recycle, just tell their kids the importance of recycling, and they'll be all over it..

If NASA is to reach beyond the Moon and someday reach Mars, it must be relieved of the burden of launching people and cargo to low earth orbit. To do….

Winter lingered so long in the lap of Spring that it occasioned a great deal of talk..

People that don't want to get down to the business at hand. Instead of just doing less, we have to find ways of doing more with less. That's the key ….

I stand by my assertions that although you can know what happens to any individual species that you modify, you cannot be certain what will happen to….

Without an end to the burning of fossil fuels, coal especially, most of us will live shorter lives. I'm hopeful, but very, very concerned..

There are two ways to be rich: to have more or need less. It's estimated that we squander about 30 percent of our energy leaving the lights on, the r….

I used to play ultimate Frisbee, and I just got a reputation for making popcorn at parties. I don't mean to brag on myself, but I make the popcorn in….