Tellurium N - Solar System Science Kit

$1,022.45

Numerous appearances in our solar system can be more vividly shown on tellurium as a three-dimensional model than with any other medium.

A tellurium (according to lat. Tellus, the earth) is a device for demonstrating the movements of the earth and the moon. These celestial bodies rotate on a lever arm around a light source intended to represent the sun.

 

- Fresnel lens for creating an extremely bright, parallel beam of light to fully illuminate the Earth's globe and to focus a spot of light on the globe to represent the apparent migration of the Sun between the tropics.

- With horizon disk and shadow staff figure, which indicates the position of the sun through the shadow case.

Tellurium N was developed by Prof. Dr. Ing. Jürgen Newig, Kiel developed in collaboration with Cornelsen Experimenta ® .

 

Included:

Great Earth Globe (15 cm Ø)

Horizon disc with shadow figure

Power Supply Unit

replacement bulb

satellite rod

Dust cover, felt-tip pen, wiper

 

The Fresnel lens

A short focal length Fresnel lens provides directional (parallel) light. As a result, a full half of the globe is illuminated by the sun and the illumination limits (day and night) coincide with the natural ones.

The Fresnel lens can be placed on the Tellurium arm in three positions :

Day and night, seasons: One half of the earth globe is fully illuminated and the shadow border is clearly visible around the globe.

Sun Point, Tropics: The lens creates a point with a small "yard" on the center of the globe. As the earth revolves around the sun, the point of light travels across the equator between the north and south tropics.

Moon phases: The moon is illuminated. As the moon moves around the earth, the phases of the moon and eclipses can be clearly demonstrated.

Horizon disc with shadow figure

• Can be placed on any location of the globe in a self-adhesive manner

• To demonstrate the changing lighting situations on earth

The satellite bar

• To demonstrate the position and movement of a geostationary satellite, a staff with a "satellite" at the top can be placed on the shadow staff of the horizon disk.

Date disc and date hand

• The Earth globe is mounted on a pointer that
moves around the sun over the date wheel as the Tellurium arm rotates. Depending on the position of the pointer, the earth's axis is facing or facing away from the sun (seasons).

• The dates for summer and winter solstice as well as equinoxes are specially marked on the date disk.

Big earth globe with pole

• On the big globe, the shadowline and other details can be seen well, even from a distance.

• Pole for demonstrating the Earth's position in space with the Earth's axis aligned with a fixed point (Polarstern).

experiment instructions

Contains detailed lesson elements with further astronomical considerations on the following 13 topics:

• Earth as a top

• Day and night

• Hour

• Polar day and polar night

• Tropic circles

Seasons

• Day and night lengths in different widths

• Day times

• Moon phases - eclipses

• tides

• Earth's circumference (Eratosthenes)

• Geostationary satellite

 

View our complete STEM kit range courtesy of Cornelsen Experimenta. To place an order please Contact Us.

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Description

Numerous appearances in our solar system can be more vividly shown on tellurium as a three-dimensional model than with any other medium.

A tellurium (according to lat. Tellus, the earth) is a device for demonstrating the movements of the earth and the moon. These celestial bodies rotate on a lever arm around a light source intended to represent the sun.

 

- Fresnel lens for creating an extremely bright, parallel beam of light to fully illuminate the Earth's globe and to focus a spot of light on the globe to represent the apparent migration of the Sun between the tropics.

- With horizon disk and shadow staff figure, which indicates the position of the sun through the shadow case.

Tellurium N was developed by Prof. Dr. Ing. Jürgen Newig, Kiel developed in collaboration with Cornelsen Experimenta ® .

 

Included:

Great Earth Globe (15 cm Ø)

Horizon disc with shadow figure

Power Supply Unit

replacement bulb

satellite rod

Dust cover, felt-tip pen, wiper

 

The Fresnel lens

A short focal length Fresnel lens provides directional (parallel) light. As a result, a full half of the globe is illuminated by the sun and the illumination limits (day and night) coincide with the natural ones.

The Fresnel lens can be placed on the Tellurium arm in three positions :

Day and night, seasons: One half of the earth globe is fully illuminated and the shadow border is clearly visible around the globe.

Sun Point, Tropics: The lens creates a point with a small "yard" on the center of the globe. As the earth revolves around the sun, the point of light travels across the equator between the north and south tropics.

Moon phases: The moon is illuminated. As the moon moves around the earth, the phases of the moon and eclipses can be clearly demonstrated.

Horizon disc with shadow figure

• Can be placed on any location of the globe in a self-adhesive manner

• To demonstrate the changing lighting situations on earth

The satellite bar

• To demonstrate the position and movement of a geostationary satellite, a staff with a "satellite" at the top can be placed on the shadow staff of the horizon disk.

Date disc and date hand

• The Earth globe is mounted on a pointer that
moves around the sun over the date wheel as the Tellurium arm rotates. Depending on the position of the pointer, the earth's axis is facing or facing away from the sun (seasons).

• The dates for summer and winter solstice as well as equinoxes are specially marked on the date disk.

Big earth globe with pole

• On the big globe, the shadowline and other details can be seen well, even from a distance.

• Pole for demonstrating the Earth's position in space with the Earth's axis aligned with a fixed point (Polarstern).

experiment instructions

Contains detailed lesson elements with further astronomical considerations on the following 13 topics:

• Earth as a top

• Day and night

• Hour

• Polar day and polar night

• Tropic circles

Seasons

• Day and night lengths in different widths

• Day times

• Moon phases - eclipses

• tides

• Earth's circumference (Eratosthenes)

• Geostationary satellite

 

View our complete STEM kit range courtesy of Cornelsen Experimenta. To place an order please Contact Us.

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Additional info

SKU: SKU202181 - 124