- What are the types of spectra?
- Which is hotter a blue or a red star?
- Do humans emit electromagnetic radiation?
- Which planet looks red from Earth?
- Describe a refraction telescope
- Describe a reflection telescope
- Why telescopes are sent to space?
- Can we detect radio waves from space?
- Describe the Arecibo telescope in Puerto Rico
- What is the Doppler effect?
Thursday, February 14, 2013
Quiz
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