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.

Elastic deflection

After the impact, the basketball regains its original shape, that is, elastic deflection occurs.

Snowflake

Fold the paper here and there, chip one or two with the scissors. This is all you need to create something fantastic that looks like a snowflake.

Calculating the golden ratio

This video presents how to calculate the golden ratio.

Earthworm

You can always find earthworms in humid soil with sufficient humus content.

Archimedes' seesaw

In this experiment, we use buoyancy to study the balance of two glasses of water.

Sarcophagus

The recording shows a more than 2000-year-old gilded sarcophagus. You can see the names of the deceased and his protecting gods on the coffin.

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.

Plotting parallel lines – Solution I

Let’s plot line g such that it is parallel to line e and passes through point P.

Added to your cart.