Internal Resistance and Dry Cells

Internal Resistance and Dry Cells

Every dry cell can be considered as being made up of two parts. Internal Resistance cannot be separated from the cell because coulombs need energy to move through any real material (including cells). Coulombs need very little energy to move through conductors. When coulombs move through loads they need (or convert to other forms or lose) … Continue reading

The Physics of Space Battles – YouTube

The Physics of Space Battles – YouTube

The Physics of Space Battles How scientifically accurate is your favorite sci-fi space battle? Subscribe to It’s Okay To Be Smart: http://bit.ly/iotbs_sub ↓ More info and sources below ↓ Follow on Twitter: http://twitter.com/jtotheizzoe Follow on Tumblr: http://www.itsokaytobesmart.com Joseph Shoer has several extensive, in-depth articles on the physics of space warfare: http://josephshoer.com/blog/2009/12/t… http://josephshoer.com/blog/2010/07/p…  

SciNews, Thursday, September 29, 2016

SciNews, Thursday, September 29, 2016

Mouth germs team up in a bad way; frog-hunting bats adapting; the power of girls in science; results of VW emissions cheat; quantum internet; effect of ‘weather bomb’ storms – just a few of the themes in today’s eclectic collection of SciNews.  Share these stories with your students and get them excited about science.

STAO Safety Mindedness Teacher Training Resource

STAO Safety Mindedness Teacher Training Resource

Overview STAO’s new online Safety Mindedness resource conveys the importance of creating a culture of safety mindedness in Science (Grades 9–12) and Science and Technology (Grades K–8) classrooms. The STAO Safety Mindedness program is an interactive online training program to train teachers on common safety-related issues in a typical Science (Grades 9–12) and Science and … Continue reading

Emma Marris: Nature is everywhere — we just need to learn to see it | TED Talk | TED.com

Emma Marris: Nature is everywhere — we just need to learn to see it | TED Talk | TED.com

How do you define “nature?” If we define it as that which is untouched by humans, then we won’t have any left, says environmental writer Emma Marris. She urges us to consider a new definition of nature — one that includes not only pristine wilderness but also the untended patches of plants growing in urban … Continue reading

How to Keep Your Phone Battery Charged Longer

How to Keep Your Phone Battery Charged Longer

The new iPhone is slimmer and faster than ever. But like most new generations of smartphones, its battery has pretty much stayed the same over the years. Short of carrying an external battery all the time, is there any way to extend the life of your smartphone battery? In the latest Reactions episode, we explain … Continue reading

SciNews, Sunday, September 25, 2016

SciNews, Sunday, September 25, 2016

Students sometimes sabotaged; nicotine could have some benefits; activity trackers don’t help in weight loss; foamy beer and spillage; teleportation across Calgary; robots taking jobs; mystery of giant space blobs – just a few of the themes in today’s eclectic collection of SciNews.  Share these stories with your students and get them excited about science.