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Total: 1115 #### Desktop icons tutorial #### The volume and surface area of a juice box

In this video we calculate the volume and surface area of a rectangular cuboid: a juice box. #### Xylophone tutorial #### The surface tension of water

Surface tension, a special property of water surface, and the spherical shape of water drops are due to the attraction between the water molecules. #### Wildlife tutorial #### Toy clock tutorial #### Test tutorial

Let’s find out how to use the Test Editor tool. #### The process of glass production

Glass items are an integral part of everyday life. But how are they made? #### Extraction of crude oil

Let's take a look at the process of extraction of crude oil at a typical oil production plant. #### Earthworm

You can always find earthworms in humid soil with sufficient humus content. #### Plotting parallel lines – Solution I

Let’s plot line g such that it is parallel to line e and passes through point P. #### 35mm cinema projector

Watch this video to learn how a cinema projector works and how a film appears on the screen. #### Reflecting a circle across an axis

Axis t and a circle with centre O and radius r are given on a particular plane. Let’s plot the mirror image of the circle. #### How airbags work

A compound called sodium azide is responsible for the operation of airbags. #### The hot ice experiment

The words hot and ice together? There must be a trick somewhere. Let’s have a look. #### Plotting a perpendicular to a line at a given point P on the line

Both line e and point P, which is situated on it, are given. Let’s plot line g to include point P on line e so that it is perpendicular to line e. #### Plotting a perpendicular on a line from a point P that is not on the line

Both line e and point P, which is not situated on line e, are given. Let’s plot line g such that it passes through point P and is perpendicular to line e. #### Archimedes' seesaw

In this experiment, we use buoyancy to study the balance of two glasses of water. #### Plotting parallel lines – Solution II

Let’s construct a rhombus such that one of its sides lies on line e and point P is one of the vertices on the opposite side. #### Dog tricks

Man's most loyal friend is the dog. They are excellent at guarding houses and can also be taught to perform minor tricks for us, too.