Simple Kids Crafts is a video blog dedicated to reviving the old art of handicrafts for people of all ages. How do oil spills affect aquatic plants? A Miniature Solar Panel Fire Water Balloon Make Clouds in a Bottle Secret Messages Make a Rocket Make a Hovercraft Make an Anemometer Make a Sundial Make a Radio Make an Electroscope Make a Stethoscope Make a Telescope Make a Periscope Make a Camera Bending a stream of water with a comb Lighting a bulb without electricity Simple Motor Cotton Ball Rocks? Salt-Absorbing Art and Science Color Changing Glue Art Baking Soda Clay Oil Sun Catcher Grow a Pineapple Plant! Bead Bowls Wow, what an Air-Gun Funny Diver ! Water boils without fire Ice with Boiling Water Water that boils instantly Water boils in a Paper Pot Soap-driven Boat Pulse Moves Pin Pretty Garden—without Plants Picture made by Fire Magic Pictures Dancing Doll Smoke Goes Down The Dancing Coupl The Umbrella Dance Magic Butterfly Colorful
Aim:
To make a simple apparatus to view sunspots without harming your eyes.
Materials required:
A sheet of white paper.
A telescope or if telescope is not available, a shoe box with a hole on one of the ends.
Procedure:
- Hold the white sheet of paper in your hand or clip it onto a clipboard.
- Point the objective lens of the telescope towards the sun and the eyepiece towards the sheet of paper so that you get a circular image of the sun on the paper.
- Adjust the focusing knob on the telescope to get a sharp image.
- Observe and see if you can see dark spots on the bright disc like image of the sun. You may have to do the experiment on several days to see these spots.
- If you do not have a telescope available, simply make a hole in one end of a shoe box and face the side with the hole towards the sun so that the image of the sun falls on the opposite side of the shoebox.
Scientific explanation:
The sun is not uniformly of the same temperature. Some spots on the sun are cooler than the rest of the sun. These spots are called sunspots. Since the sun is so intensely bright, we cannot look on it with our naked eye and distinguish these spots. However when you use the telescope or shoebox pin hole to project the image of the sun onto a white sheet of paper, you can see these spots as black spots. You may have to do the experiment on several days because sunspots are not constant. On some days there may be no sunspots visible at all.
Comments
Post a Comment