Stories tagged video

Beta Gel is a soft silicone gel that absorbs impact shocks so well that an egg dropped onto a thin piece of it from 72 feet did not break. Click here to see video.

In this You Tube video, Orcas cooperate to create a wave that washes their prey off an island of ice.

If you have a high speed internet connection I recommend viewing this video. I wonder if it will ever get back out?
NASA video explaining Opportunity's plunge into Victoria Crater.

Science Hack is a search engine that lets you look for pre-screened educational science videos.

Mar
20
2007

Vibrations create cool patterns

Vibrating surfaces create sound waves. In the video below a plate of metal is vibrated with higher and higher frequencies. Salt spinkled on top of the plate can only stay where the surface is not vibrating. The nonvibrating areas are called nodes. Distance between nodes is shorter for higher frequencies.Standing waves
Standing waves
The patterns you see are known as standing waves. We have an apparatus like this at the Science Museum of Minnesota on the third floor. You might also try to make standing waves in a stretched slinky.

Try doing this yourself

I once stretched rubber from a large balloon over the front of a large car speaker. Using an amplifier and frequency generator, I was able to make similar patterns in salt sprinkled on top of the sheet of rubber. You could try an electric keyboard to produce the different frequencies of sound.

Want to see a longer video?

If you have time here is a link to part 1 of some extraordinary film clips of Hans Jenny experiments from the 1960's and early 70's(28 minutes).

Jan
18
2007

I've been chatting with Chris Condayan from the American Society for Microbiology and discovering a bunch of great website about this science of "wee beasties." I had to share some of the fun:

Cartoon critters

Bacillus cereus: Cartoon by Emma Lurie
Bacillus cereus: Cartoon by Emma Lurie

Adopt a Microbe is a goofy blog from Emma Lurie, a microbiology student in perth. A graphic artist, Lurie, draws great cartoons of common microbes and posts them along with fun and simple descriptions. From Bacillus cereus' description:

I love rice!
Rice is one of my favourite places to live, especially if it's been reheated over and over.
You can get food poisoning from me that will give you diarrhoea and vomiting.
I use a special toxin to make you sick.

An unconventional documentary

Ever wonder about the history of microbiology but didn't want to watch a dry film with boring scientists? LEGOs to the rescue. These whimsical animated LEGO mini-figs tell the wild history of microbiology greats like Louis Pasteur.

So now that you're interested, look further into the microscope with these more in-depth resources:
Microbe World - Discover Unseen Life on Earth
Small Things Considered - The Microbe Blog.

"Operation Migration" leads whooping cranes from Wisconson to Florida every October. Watch how on this National Geographic video. You can track their progress here.

Aug
21
2006

Sneaky videos
Sneaky videos

Cy Tymony, author of the great book, Sneaky Uses for Everyday Things, is sponsoring a contest for science fair projects on conservation. Just make a how-to video about your project on alternative energy or conservation, upload it to You-Tube, and you can be entered to win a DVD player, a portable MP3 Player with thumb drive and a USB WiFi adapter. If you post your videos make sure to add them to the Recycle Reuse Rethink Energy Usage group.

I'm excited for this project because it not only inspires kids to hunt out alternative energy and conservation ideas but also encourages them to document their work. This will help support the idea that science is a process involving research as well as communication.

To get inspired check out the videos that Cy has already posted. My favorite is the cool hidden pocket how-to. I know its not energy focused, but it's still a great example.

I've just discovered MicrobeWorld, offering a cool series of audio and video podcasts on topics in microbiology. Today's offering? "How long does smallpox immunity last?"