The National Science Foundation has partnered with NBC Learn (the educational arm of NBC News) to release the "Science and Engineering of the 2014 Olympic Winter Games"--the latest installment in the Emmy Award-winning "Science of Sports" series. This enlightening 10-part video collection, narrated by NBC Sports' Liam McHugh, delves into the physics, engineering, chemistry, design and mathematics behind the world's foremost sporting event.
Science Friday is a weekly science talk show, broadcast live over public radio stations nationwide from 2-4 p.m. Eastern time. Each week, we focus on science topics that are in the news and try to bring an educated, balanced discussion to bear on the scientific issues at hand. Panels of expert guests join Science Friday's host, Ira Flatow, a veteran science journalist, to discuss science - and to take questions from listeners during the call-in portion of the program.
An original rap about the Large Hadron Collider--don't miss it. Brought to you by Will Barras, PhD student in the department of linguistics and English language at the University of Edinburgh and science writer (and rapper) Kate McAlpine.
The complex systems of high school dating and chemical reactions may have more in common than you think. Explore five rules for speeding up chemical reactions in the lab that might just land you a date to a dance!
: What happens if you wring out a wet towel while floating in space? The water shouldn't fall toward the floor because while orbiting the Earth, free falling objects will appear to float. But will the water fly out from the towel, or what? The answer may surprise you. To find out and to further exhibit how strange being in orbit can be, Expedition 35 Commander Chris Hadfield did just this experiment last week in the microgravity of the Earth orbiting International Space Station. As demonstrated in the above video, although a few drops do go flying off, most of the water sticks together and forms a unusual-looking cylindrical sheath in and around the towel. The self-sticking surface tension of water is well known on Earth, for example being used to create artistic water cascades and, more generally, raindrops.
This animation demonstrates the stages of mitosis in an animal cell. Use the control buttons in the upper left to run the complete animation. Click on any intermediate stage (for example, Anaphase), and see a representative still frame
Most of the time, when a cell in our bodies divides, each new cell carries a complete set of chromosomes. The cells involved with human reproduction, however, carry only half after division occurs. In this step-by-step explanation, learn about mitosis and meiosis, the two types of cell division.
People are central to many of the environmental and social issues facing the world today. How many of us there are. How we behave and treat one another. How we value our planet. Our numbers and our lifestyles go hand-in-hand in determining the kind of future we will leave behind for future generations.
Water For Life's mission is to help communities in need develop safe and sustainable water sources. By combining formal instruction with hands-on training we teach people how to construct and maintain their own local water resources. Our focus is not simply to provide safe drinking to those in need-our goal is to help people gain the knowledge and experience they need to help themselves and their communities.