欢迎您登陆
+ 影音搜索
听力等级

科学研究   常速英语

2022-05-24   Video
Regulatory Switches in Stickleback Fish

Keywords:

Both the marine and the pelvic reduced population have a Pitx1 locus. The coding region of the gene is still intact in both populations. This gene we think is surrounded by a series ...


2022-05-20   Video
Regulatory Switches in Drosophila

Keywords:

[CARROLL:] Let's compare two flies, one without spots, which is the humdrum Drosophila melanogaster, one with spots on the male, Drosophila biarmipes. There's a gene, we're just going to ...


2022-05-18   Video
Fracking Explained - Opportunity or Danger

Keywords:

What is hydraulic fracturing – or fracking? Since the industrial revolution our energy consumption has risen unceasingly. The majority of this energy consumption is supplied by fossil fuels like...


2022-05-16   Video
Body Mass Index (BMI)

Keywords:

Can we roll the video here? This video tape scans across what the BMI would be for a 5'10" individual, a male, at a different weight. So this man has a BMI of 24 he's 5'10", 167lbs. He ...


2022-05-14   Video
How Evolution Works

Keywords:

Mechanisms of evolution. What is evolution? Evolution is the development of life on Earth. This is a process that began billions of years ago and is still continuing to this day. Evolution...


2022-05-12   Video
The Fate of Fat

Keywords:

And Francis (Crick) is known for his discovery, along with Jim Watson, of the structure of DNA. And he would occasionally indulge in a double bacon cheeseburger from Jack in the Box. A...


2022-05-10   Video
The Beginning of Everything - The Big Bang

Keywords:

The beginning of everything. The Big Bang. The idea that the universe was suddenly born and is not infinite. Up to the middle of the 20th century, most scientists thought of the universe ...


2022-05-08   Video
What Is Life

Keywords:

Life is fundamentally different from dead stuff—or is it? Physicist Erwin Schrödinger defined life this way: Living things avoid decay into disorder and equilibrium. What does this mean? ...


使用须知 常见问题  

Copyright© 2015-2025 kuotuo Inc. All rights reserved  

粤ICP备12056166号-3 粤公网安备 44010602002199号

您的IP地址:18.207.132.226