Our eyes detect light only within a range of frequencies called visible light.
The first working fiber-optic data transmission system was demonstrated by German physicist Manfred Börner at Telefunken Research Labs in Ulm in 1965, which was followed by the first patent application for this technology in 1966. In 1968, NASA used fiber optics in the television cameras that were sent to the moon.
Answer:
218.93 km
Explanation:
= Angle between the paths of the two boats = 54.10°
Distance = Speed × Time
Distance traveled by one boat = 
Distance traveled by other boat = 
From the triangle law of vectors we have
The distance they will be apart after 3 hours is 218.93 km
Thermal potential energy is converted into electric energy.
