Showing results for: Backgrounders

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CurioCity10 January 2019

The concept of time is universal among humans, but telling time precisely has not always been important. The movement of the Sun through the sky has been the traditional way to tell time, either by just observing the movement of the Sun or with devices such as sundials and time sticks.

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Harleen Saini 21 December 2018

What exactly is sound, and how do we hear it?

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Education Services / L’équipe des services d’éducation29 August 2018

Noise has a significant impact on life on Earth and on board the ISS. This backgrounder explains what noise is, how it is measured, and how it affects us both mentally and physically.

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Education Services / L’équipe des services d’éducation29 August 2018

Light is an important part of life on Earth and life in space. This backgrounder explains what light is, how it is measured, and how it affects us both mentally and physically.

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Education Services / L’équipe des services d’éducation1 June 2018

Carbon dioxide is an important part of the air we breathe both on Earth and in space. This backgrounder explains what carbon dioxide is, how it is measured and how it affects us both mentally and physically.

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Education Services / L’équipe des services d’éducation1 June 2018

Humidity is an important part of life on Earth and life in space. This backgrounder explains what humidity is, how it is measured and how it affects us both mentally and physically.

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Education Services / L’équipe des services d’éducation24 May 2018

Temperature is an important part of life on Earth and life in space. This backgrounder explains what temperature is, how it is measured and how it affects us both mentally and physically.

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Leanne Grieves11 April 2018

Invasive alien species are organisms that get introduced to a new area, then cause problems for the ecosystem, for other organisms, and even for humans. How do alien invasive species happen, and what problems do they cause?

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Education Services / L’équipe des services d’éducation1 November 2016

This backgrounder discusses the factors that affect the amount of cosmic radiation people receive on long-distance flights.

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Bryan Jenkins19 November 2015

The human brain is one part of our nervous system, which is the control system through which all other body systems receive their instructions. Much like the engine of a car, the brain is made up of many different parts. These parts have different functions, but they work closely together, to coordinate complex thoughts, feelings and behaviours.

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