Wednesday February 8 2012
refraction

Sunglass Science: Birefringence

Anonymous: 

Link to Sunglass Science: Polarized Light

This time we will explore things that are usually invisible, revealing new things about the world around us.


Sorry, but this content is reserved for subscribers only.

Your $20/year subscription helps cover the costs of producing new videos, writing curriculum units, site development, and hosting. Without that support, this site would not be possible.

If you are already a subscriber, and having problems logging in, please check the Support Page.

If you are not yet a subscriber, please check out the Free Stuff page, and Subscribe Now.

join

thumb: 

Laser Projection Microscope

Anonymous: 


Turn a $5 laser pointer into a projection microscope! This is one of the coolest demos that I have come across in a long time!


Sorry, but this content is reserved for subscribers only.

Your $20/year subscription helps cover the costs of producing new videos, writing curriculum units, site development, and hosting. Without that support, this site would not be possible.

If you are already a subscriber, and having problems logging in, please check the Support Page.

If you are not yet a subscriber, please check out the Free Stuff page, and Subscribe Now.

join

thumb: 

CD Spectrum

Anonymous: 

This week's experiment uses a computer CD or DVD. If you have ever looked closely at either a music or computer CD, you have probably noticed that they produce rainbows. If you hold the CD with the shiny side up and let light from a lamp reflect off of it, you will see a very nice rainbow of colors. If you are using a regular incandescent bulb, you will see all of the colors of the rainbow: Red, orange, yellow, green, blue, indigo, violet. If you use other kinds of bulbs, you may find some colors missing. To try this, you will need:

This experiment is Subscriber Only content.

Subscribe Now, and get full access to this experiment, and hundreds of other experiments and videos.

This project has science fair potential.

Silver Penny

Anonymous: 

This week's experiment uses fire, so be very careful and be sure that you have an adult to help you.

This week's experiment involves both chemistry and light. It is always pleasing for me to find one experiment that can send you exploring in several different directions.

This experiment is Subscriber Only content.

Subscribe Now, and get full access to this experiment, and hundreds of other experiments and videos.

Making Money Appear

Anonymous: 

This experiment is from a Magic of Science workshop that I taught several years ago. No, it is not a get rich quick scheme. It is a fun way to see how we can bend a ray of light.

This experiment is Subscriber Only content.

Subscribe Now, and get full access to this experiment, and hundreds of other experiments and videos.

Why is the Sky Blue?

Anonymous: 

This is one of the classic questions that children ask, and one that many adults do not know the answer to. With this simple experiment we will answer the question, and also find out why sunsets are red.

This experiment is Subscriber Only content.

Subscribe Now, and get full access to this experiment, and hundreds of other experiments and videos.

Why Wet Things Turn Dark

Anonymous: 

Why does making something wet cause it to look darker?


Sorry, but this content is reserved for subscribers only.

Your $20/year subscription helps cover the costs of producing new videos, writing curriculum units, site development, and hosting. Without that support, this site would not be possible.

If you are already a subscriber, and having problems logging in, please check the Support Page.

If you are not yet a subscriber, please check out the Free Stuff page, and Subscribe Now.

join

thumb: 

Science Photo of the Day

Pic88

What is the area between the two rainbows called, and why is it darker than the rest of the sky?

Science Photo of the Day

Pic79

I took this photo on the flight home, as we approached the Atlanta Airport. What caused the colors around the shadow of the plane?

Changing the Speed of Light

Anonymous: 

Can you really change the speed of light? Of course you can!


Sorry, but this content is reserved for subscribers only.

Your $20/year subscription helps cover the costs of producing new videos, writing curriculum units, site development, and hosting. Without that support, this site would not be possible.

If you are already a subscriber, and having problems logging in, please check the Support Page.

If you are not yet a subscriber, please check out the Free Stuff page, and Subscribe Now.

join

thumb: 

Science Photo of the Day

Science Photo


Latest Free Video


Latest Premium Video


Latest Experiment

Surface Area

Which salt sample will dissolve faster?

This Week's Spotlight:
Physical Change

Recently Added Pages

17 hours 50 min ago
1 day 19 hours ago
1 day 23 hours ago
2 days 17 hours ago
2 days 17 hours ago
2 days 18 hours ago
2 days 18 hours ago
2 days 19 hours ago
3 days 3 hours ago
3 days 18 hours ago

Vid-bits

These are short, science oriented videos that don't fit neatly into other categories. Many are just for fun, as I learn more about the world of video.

Performance at Technorama

Fun at Technorama

Manatees

Swallow Tailed Kite

Lightning at the Beach

Big Surprise

HappyTone News: Shuttle Launch NEW!

Electricity shows in Thousand Oaks NEW!

Recently updated Pages

17 hours 40 min ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago
1 day 8 hours ago

Recent comments