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Bathysphere
A bathysphere is used for deep-sea exploration and in order to dive, the bathysphere takes on a mass in the form of seawater. Read through this very interesting document on the principles of buoyancy applied to fish floating and bathyspheres. Attachment
Loss of colour underwater
Colour loss underwater Have you ever wondered why images and movies taken at deep ocean depths look “less colourful” ? Well this student took a video while scuba diving and showed clips at various depths. Have a look at the Learning Object below to find out why this happens!
Water Basins from the Tang Dynasty
In the Tang dynasty (618 – 907 AD), water basins such as these became very popular. This learning object helps explain how these water basins work, and includes a very cool video showing the effect! Attachment PowerPoint File
Did astronauts really go to the moon?
This learning object uses a swinging mass on the moon from a recorded video of the NASA mission to show that the gravitational constant is actually different than the one measured on the Earth. Additional Links Video of Apollo 14 SEQ Pendulum with Commentary NASA overview on SEQ Pendulum