常速英语

Keywords:

Climate change is just too much. There's never any good news. Only graphs that get more and more red and angry. Almost every year breaks some horrible record, from the harshest heat waves ...

Keywords:

MALE: The product of glycolysis. The pyruvate molecule is the source of carbon and electrons for aerobic respiration reactions inside your mitochondria. Pyruvate enters pores on the mit...

Keywords:

The past is a vast and mysterious land that begins at the big bang and ends in the present, expanding with each passing moment. It is the home of everything that came before, the key to unders...

Keywords:

All life on Earth depends on this tiny energetic molecule, adenosine triphosphate or ATP. ATP drives biochemical activity inside your living cells and is a key building block of DNA and RN...

Keywords:

What is the largest star in the universe and why is it that large? And what are stars anyway? Things That Would Like To Be Stars We begin our journey with Earth. Not to learn anything, ...

Keywords:

SPEAKER 1: In March 2020, a new disease swept the world, causing hospitals to become overwhelmed and many people to die. This disease, COVID-19, is caused by a virus named SARS-CoV-2,...

Keywords:

Kandace Griffin: It's like we're making coffee. You're passing a hot liquid over a solid and making lamprey coffee. We have a flask of solvent, and as that heats up, it's going to evaporate. And then ...

Keywords:

SHANE CAMPBELL-STATON: Meet my colleagues, Nate and Zac. They take running pretty seriously. NATE SENNER: Why do I run? I mean, I run because I enjoy pushing myself to my limits and...