Telescopes are instruments that
send light into space to see objects.
collect light from objects on Earth.
collect different types of light from distant objects.
collect only light that passes through Earth’s atmosphere.
What invention made small computers possible?
The airport scanner used
What is one standard for measuring how quickly a new technology is accepted?
the time it takes for 10 percent of homes have it
the time it takes for 25 percent of homes have it
the time it takes for 50 percent of homes have it
the time it takes for 100 percent of homes have it
The picture below shows GPS satellites orbiting the Earth. These satellites will send signals to