Friday, January 30, 2015

An Astronaut's Advice

I'm just a fan of Commander Chris Hadfield, astronaut.  
Click on the links below to see his many short YouTube videos taken aboard the International Space Station  (ISS) last year, the amazing photos he took from space to post on Twitter and Facebook, and the advice he gives to students when he travels around the world to give talks about his experiences aboard the ISS. 
YouTube ISS Videos
Photos from the ISS
Commander Hadfield's Advice 




Wednesday, January 28, 2015

Cuban Tree Frog, Florida

Sometimes you have to take advantage of whatever heat source you have available...
Photograph by James Snyder
This pic was the Photo of the Day on the National Geographic Website for December 9, 2009. 
Here' s the text that followed:
"This is a Cuban tree frog on a tree in my backyard in southern Florida. How and why he ate this light is a mystery. It should be noted that at the time I was taking this photo, I thought this frog was dead, having cooked himself from the inside. I'm happy to say I was wrong. After a few shots he adjusted his position. So after I was finished shooting him, I pulled the light out of his mouth and he was fine. Actually, I might be crazy but I don't think he was very happy when I took his light away." 

Monday, January 26, 2015

Thermal Energy Transfer

How do research scientists living in the most severe weather on earth minimize heat loss from their bodies?  Create a post in your Science Journal titled "Antarctica", and upload an image: identify and explain 3 examples of how humans can limit heat loss through:
1. conduction 2. convection 3. radiation
Click on the images to view the videos.


Antarctica: Condition 1
https://www.youtube.com/watch?v=qz2SeEzxMuE

Walking to Work in Condition 1:
https://www.youtube.com/watch?v=r8JMSZYMhtY

Which form of heat transfer is being used for this effect?
https://www.youtube.com/watch?v=t2sozrof3HY

X-Ray Art

Check out some familiar objects in a new light.  Click on the image to see the gallery.
http://www.radiologyart.com/

Waves: Light and Sound

Music and Standing Waves
http://www.sciencedump.com/content/science-vs-music 
Sound waves made visible - click on the image to see the video.
 standing waves made visible

Outside the Visible Range
http://www.archaeology.org/news/2918-150123-iceman-new-tattoos
The Ice Man has tattoos that reflect light outside of the visible range for humans - 
click on the image to read the article.
 Oetzi's Tattoos