Visit Exploratorium in San Francisco for extra credit.

Write a short report to describe what you see, and the principle behind each experiment listed below (with photos).

Exploratorium
Pier 15 (Embarcadero at Green St)
San Francisco, CA 94111
(415) 528-4444

Exploratorium 100 100 false 84bdd6cd-f8a6-4ee7-9577-55ecb46701e2.JPG feather_coin.JPG 75 100 Feather & Coin: see how they fall in air and in vacuum Feather & Coin: see how they fall in air and in vacuum f0390f8e-dea8-4443-b83d-aec4dae49348.JPG floating_object.JPG 100 75 Floating Ball: why does the ball follow the air blower ? Floating Ball: why does the ball follow the air blower ? f72d78cf-25c3-4665-8410-2cfdb452941b.jpg make_wave.jpg 100 83 Make Waves Find this machine and make "traveling waves" and "standing waves" Make Waves Find this machine and make "traveling waves" and "standing waves" 79d2470c-59da-458c-ad74-aee8c89507de.jpg bicycle_wheel.jpg 100 66 Bicycle Wheel Gyro Tilt the wheel and feel the force turning you around. Bicycle Wheel Gyro Tilt the wheel and feel the force turning you around. ecfa2b92-88b7-40ff-b5ce-419fcf54e32a.jpg virtual_cup.jpg 100 75 Real Image Try to touch the Spring or Cup inside this box. It's NOT there !!! Real Image Try to touch the Spring or Cup inside this box. It's NOT there !!! 4a199487-a18c-4802-b212-6db034545de8.jpg touch the spring.jpg 74 100 d8a660be-a26f-4169-9a6f-f83a2fbb222c.JPG cloud_chamber.JPG 100 75 Cloud Chamber (or bubble chamber) Find this box in the dark corner and observe the trails of bubbles inside. What are they? Cloud Chamber (or bubble chamber) Find this box in the dark corner and observe the trails of bubbles inside. What are they? a2e67deb-0131-4325-a77e-63c8e0a70de4.JPG whisper_sphere.JPG 100 75 Whisper Sphere Find this pair of "disc" and whisper to your friend across the hall. Whisper Sphere Find this pair of "disc" and whisper to your friend across the hall. 9b350f90-297d-4bac-81f6-b31490fd1895.jpg Newtons_rings.jpg 100 74 Newton's Rings FInd this in a dark area. What are the rings? Newton's Rings FInd this in a dark area. What are the rings? 33e5d9f7-e2c4-449a-996e-349aac991130.jpg disc_race.jpg 100 75 Disc racing (or Downhill Race) Let the disc rolls down the rail. Why are some faster than the others even though the masses may be the same? Disc racing (or Downhill Race) Let the disc rolls down the rail. Why are some faster than the others even though the masses may be the same? fb497093-14ee-49c1-9978-8fabefac2dda.jpg concave_mirror.jpg 100 83 Big concave mirror You can't miss this huge mirror by the entrance. As you move closer, your image would go from upside-down to right-side up. What happens when you stand in between these 2 "regions"? Shake hand with yourself !!!!! Big concave mirror You can't miss this huge mirror by the entrance. As you move closer, your image would go from upside-down to right-side up. What happens when you stand in between these 2 "regions"? Shake hand with yourself !!!!! 6aade6d4-ae80-4f32-af18-dfdbf8805efc.jpg anti_gravity.jpg 75 100 Anti-gravity Find this mirror and make yourself "float" in air. Have fun :-)Anti-gravity Find this mirror and make yourself "float" in air. Have fun :-) Anti-gravity Find this mirror and make yourself "float" in air. Have fun :-) ec5d44af-b237-49cf-b066-609eba529e4d.jpg big_soap_bubble.jpg 100 65 Big Soap Bubble Go cover yourself with a big soap bubble. Why do the bubbles have "rainbow"? Big Soap Bubble Go cover yourself with a big soap bubble. Why do the bubbles have "rainbow"? b50251b3-2293-4805-a9e5-1dd95653e9e6.jpg hot_or_cold.jpg 100 75 Hot or Cold Feel the copper tubes and see how our temperature "feeling" is just not so reliable :-) Hot or Cold Feel the copper tubes and see how our temperature "feeling" is just not so reliable :-) aa59dab2-fe35-465d-b07c-5f7e4972a145.jpg illusion.jpg 100 66 Find this magic room. How can a little kid be so much taller than an adult? Have someone take a picture of you in it. Find this magic room. How can a little kid be so much taller than an adult? Have someone take a picture of you in it.

There are so many more exhibits to see and play with. Plan to spend a whole day there. Have fun.

Go with a group of friends. Take lots of photos and enjoy.