The International Space Station
Day 3 - December 2
Today, as both the International Space Station (ISS) and Space Shuttle fly over Russia, Endeavour will dock with the ISS. During docking, using a computer programmed laser pointer, Marc Garneau will determine the Shuttle's position in relation to the Station as well as find out at what rate the two are closing on one another. Once the Shuttle is docked, Marc will remove, using Canadarm, the structure to which the solar arrays were installed before the launch (the P6 truss). He will then move this structure, which measures 14 metres (m) long and weighs 16 000 kilograms (kg), to its permanent location a couple of centimetres (cm) from the Station. P6, which Marc just moved, connects to another section of the Station, called Z1. Ouch! It's like building a large cosmic puzzle!
Info! Did you know that the ISS is as big as a football field?
Questions / Answers
How much energy does the International Space Station (ISS) need to power all its systems?
Once completed, the International Space Station (ISS) will be equipped of four pairs of solar panels measuring 70 metres (m) by 10 metres (m) from tip to tip, which will extend beyond the Station's main body like the wings of a bird in flight. When the Station has been fully assembled, the total electric power system will generate 110 kilowatts (kW) in total—roughly equivalent to the amount of energy typically consumed by 55 houses.
How many sunrises will an astronaut see every 24 hours (hr) on board the Station?
Astronauts aboard the Station will be able to admire 16 sunrises and 16 sunsets every 90 minutes (m)!
How many Canadian houses could the Station power if you know that a Canadian house uses 100 Amp of electricity and the Station will produces close to 110 kilowatts (kW) of electricity?
To transform amps in kilowatts (kW), you need to multiply them by 110 volts (v).
100 Amps (your house) x 110 volts (v) = 11 000 watts (W) (or 11 kilowatts (kW)) = 10 houses
Why is the Sun hot?
The Sun is hot because of its gigantic size (its diameter is 110 times as big as that of the Earth). This creates an enormous pressure in its mass and produces very high temperature: up to 15 million (M) degrees Celsius in its core and 5 700 at the surface. Ouch! That's hot! Compare this temperature to that of your oven.
What is the Canada's main contribution used for building and maintaining the International Space Station (ISS)?
Canada, known for its expertise in robotics, has developed a next generation robotic arm for the International Space Station (ISS). The Station Remote Manipulator System will be essential during the assembly operations for the Station as well as its daily maintenance.
Also available: The list of all questions of the Space 2000 Project
Mission: Sun Contest
Come back tomorrow to find out what is the answer to question 12!
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