to start once in orbit the stillites weights nothing because of zero-g(gravity) and the more something weights on earth more fuel is needed so almost all satillites are made from light weight matiriels and so its the same for the arm the more it wieghts the more fuel is needed and because it isn't used on earth only in zero-g so it also is made from light weight materials lick carbon fibre and aluminum
Most satellites and space vehicles are made from an aluminum or titanium alloy, or composite material, and then coated or anodized to prevent oxidation in space.
Gravity is a characteristic of space. Because of it, every material object encounters a force of attractiontoward every other material object. That leads to some interesting consequences:-- A satellite is attracted toward the earth.-- You are attracted toward the earth.-- The earth is attracted toward a satellite.-- A satellite is attracted toward you.-- The earth is attracted toward you.-- You are attracted toward a satellite.-- Two satellites are attracted toward each other.-- You are attracted toward Mars.-- The sun is attracted toward you.-- The sun is attracted toward a satellite.-- The sun is attracted toward my dog.-- You are attracted toward my dog, and also toward the sun.-- My dog is attracted toward Pres. Obama's golf balls....etc.
From the material of old stars.
Yes and no. It was the same material initially when the solar nebula first condensed, however then the sun ignited and cooked the volatiles (e.g. gases, water) out of the material nearby and the solar wind carried those volatiles outward. The material further out retained the original volatiles. The volatile depleted material then formed the four terrestrial planets and the undepleted material then formed the four gas giant planets.
In the early 19 hundreds the material that cost to make a "two dollar pistol" was cheap (the guns sold for $2) therefore the material when the gun with fired would heat up hotter than the material use on a more expensive gun made with better material.
Properties of the material help decide if the material should be used or not. Below are key properties to think about when selecting a material for use:1)Malleability - The ability to reshape a material (e.g metal, plastic) without cracking.2)Conductivity - The ability for a material to conduct electricity.3) Hardness - I'm sure you can guess what this is! (The ability of a material to resist scratching or wearing)
physical properties
material's performance depends on its physical properties
An isotropic material has properties which are independent of the direction in which they are measured whereas in an anisotropic material the properties do depend on the direction .
Titanium is the most commonly used material for making satellites.
the material silk, is a natural material which comes from the silk plant.
It will have different properties.
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the main difference is of SPELLINGS!. material science is knowing the basic knowledge about materials i.e their properties. and material engineering is that, by knowing the properties of a particular material you design or engineer that material for desired applications.
Each material has specific chemical properties.