We humans are becoming an urban species, so cities, they are our natural habitat. That is where we live.
I took a cell phone and accidentally made myself famous.(Laughter)I was just talking about the things that I cared about, but with the click of a button and an incendiary viral video I propelled mysel
In my early days as a graduate student, I went on a snorkeling trip off the coast of the Bahamas. I'd actually never swum in the ocean before, so it was a bit terrifying.
This is a picture of a sunset on Mars taken by NASA's Curiosity rover in 2013. Mars is a very cold planet, flooded with high levels of UV radiation and extremely dry.
So, Ma was trying to explain something to me about Grandma and when they grew up, but I couldn't pay attention to her because I was five years old, and I was petrified.
What stands between Africa's current prostrate condition and a future of prosperity and abundance for its long-suffering populations? One word: knowledge.
Today I'm here, actually, to pose you a question. What is life? It has been really puzzling me for more than 25 years, and will probably continue doing so for the next 25 years.
I'd like for you to take a moment to imagine this with me. You're a little girl of five years old.
As you heard, I'm a physicist. And I think the way we talk about physics needs a little modification. I am from just down the road here; I don't live here anymore.
周六, 05/14/2022 - 04:09