Warm-Up Questions

1
Warm-Up Questions

• Crush a styrofoam cup and make it as small as
  possible.
• 1. What keeps you from crushing it any further?
• 2. Could you crush it further if you had more
  strength?
• 3. Is there a limit to how far it can be crushed
  even if you use unlimited strength?

2
Examples of Nebulae

• The Crab Nebula in blue light
• The Pelican Nebula
• The Horsehead Nebula
• The North America Nebula
• The Great Nebula in Orion