Hmm..
What is Nanotechnology ?
What is Astrophysics ?
What is Spaceship ?
What is Submarine ?
Answers
- What is Nanotechnology ?
Nanotechnology is a field of research and innovation concerned with building 'things' - generally, materials and devices - on the scale of atoms and molecules. A nanometre is one-billionth of a metre: ten times the diameter of a hydrogen atom. The diameter of a human hair is, on average, 80,000 nanometres.
- What is Astrophysics ?
the scientific study of the physical and chemical structure of the stars, planets, etc.
- What is Spaceship ?
a vehicle that travels in space, carrying people
- What is Submarine ?
a type of ship that can travel under the water as well as on the surface
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Answer:
Nanotechnology
Nanotechnology is a field of research and innovation concerned with building 'things' -
Astrophysics
the branch of astronomy concerned with the physical nature of stars and other celestial bodies, and the application of the laws and theories of physics to the interpretation of astronomical observations.
Space ship
a spacecraft, especially one controlled by a crew.
Submarine
warship with a streamlined hull designed to operate completely submerged in the sea for long periods, equipped with a periscope and typically armed with torpedoes or missiles.
Explanation:
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