Dividing Space into Regions by 3 Planes

Division of space by three intersecting planes in several different arrangements.

Water turbine, generator

Water turbines convert the kinetic energy of water into electric current.

Hot air balloon

A hot air balloon is a balloon aircraft which is lifted by hot air.

Red deer

Red deer are even-toed ungulates, ruminants. Their males have spectacular antlers.

Mid-latitude cyclone and anticyclone

Cyclones are large areas of circulating air with clouds and precipitation being formed in its centre.

Types of surface epithelium

Surface epithelia cover the external and internal surfaces of the body

Male reproductive system

The reproductive system consists of organs which work together for the purpose of reproduction.

Mallard

This animation demonstrates the anatomy of birds through the example of mallards.

Types of gears

Two meshing gears transmit torque during their rotational motion.

Dice

Regular dice can be used for solving statistical and probability exercises.

Common carp

Freshwater fish used as food in many parts of the world.

Secondary structure of proteins

Polypeptide chains are composed of amino acids and can appear in alpha-helix or beta-sheet form.

Types of bridges

Types of bridges include beam-, arch-, suspension-, cantilever and truss bridges.

Grass snake

A type of snake with a characteristic spot on its neck.

Warm front, cold front

Cold and warm fronts are formed where bodies of cold and warm air meet.

Location of origin of livestock and crops

Domesticated animals and crops originate from various parts of the world.

Monsoon wind system

In summer, monsoon winds bring heavy rainfall from the ocean to the continent.

Female reproductive system (intermediate)

The reproductive system is a series of organs working together for the purpose of reproduction.

Common earthworm

The anatomy of annelids is demonstrated through the example of the common earthworm.

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