StarTalk Radio Cosmic Queries – Space Traveler’s Delight
Jun 18, 2024
Astrophysicist Neil deGrasse Tyson and Chuck Nice discuss stillness in the universe, humans on Mars, and selecting music for the Voyager Golden Record. Topics include strength differences on Mars, 3D printing in space travel, absolute stillness in quantum physics, and the behaviors of particles in black holes.
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Strength on Mars
- Your strength remains the same on Mars relative to other humans.
- You can lift more weight on Mars due to lower gravity, not increased strength.
Gravity's Impact on Structure Size
- Lower gravity enables building larger structures because supports bear less weight.
- Whales, the largest mammals, demonstrate this principle by thriving in the buoyant ocean.
Mass vs. Weight
- Mass remains constant regardless of location in the universe, while weight changes due to gravity.
- Momentum, dependent on mass, remains consistent; a thrown brick's impact is similar on Earth and Mars.