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Pressure
The bed of nails phenonenon |
A four-layer bed of nails using 6 inch nails. Youtube. 3 minutes. Guinness world record. Check out other links on youtube also. | Five Star | |
Pressure in a Liquid
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Water tower
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Interactive investigation of pressure in a liquid .
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Archimedes' Principle
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Introduction to Archimedes Principle
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| pressure and depth animation | link | ||
Density
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Very useful introduction to the concept
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How much sugar is in a can of soda ?
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Way, way too much. From YouTube. 4 minutes
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Buoyancy
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Upthrust |
Crane falls into the sea while trying to lift
a car out of a harbour in Galway. . .Scroll down slowly . . . Second crane comes along and tries to lift out the first crane . . . ‘guess the crane-drivers forgot about Upthrust. |
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Apparently it’s another wonderful story slain by a simple but cruel fact: |
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Silly Stuff |
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Menthos and Coke
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Absolutely amazing
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The Original Mentos Geyser Video
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The alka seltzer rocket
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From the 'Physics to go' team
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Amazing marshmallows
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The vacu-pump can be obtained in many wine shops
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Fun with Bernoulli's principle
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Again, easy to demonstrate
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Try breaking an egg with one hand
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Can't be done, force is spread over too large an area
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Nice density demonstration using peanuts and beer (sprite will do fine)
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Can you figure out how it works without reading the explanation?
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Atmospheric Pressure
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Photo of an imploded steel drum
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A
collection of video-clips of can-crushing, including the steel drum
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An
imploding train carriage !!
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Video of the same |
Youtube. 30 seconds |
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| sucking through a straw | link | ||
| collapsing can demo | link | ||
Boyle's Law
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Boyle’s
Law
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Simple but effective. Includes a graph of P and V
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Boyle’s
Law
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Simple but effective. This one has P and 1/V
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Boyle’s
Law
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One atom moving in one dimension. See what happens when you change pressure, volume or temperature
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More
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Same as above, but in two dimensions.You can adjust Volume, Temperature, Mass of molecules and Number of molecules. |
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Even better
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Select 'Boyle's Law', then select a temperature and click on "ok". Next click on the "Graph" tab to bring up a tab of Pressure against Volume. Then add masses to decrease the volume and hit "Record" to plot the values. |
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Relationship
between Pressure and Temperature
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Observe the temperature equalising between inside and outside after increasing the temperature.
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