40 year old father, addicted to learning, engineering student, longevity chasing, spartan runner! Just trying to change myself so I can change the world!
We should be doing this everywhere!
Parking lots are wasted space under the sun.
Cover them with solar canopies and you get:
• Clean power
• Cooler cars
• Shade for people
• No new land needed
Same asphalt. Way better outcome.
I am delighted to be able to share the latest study from the @LammingLab, “Lifelong restriction of dietary valine has sex-specific benefits for health and lifespan in mice” led by former graduate student @mariahcalubag!
Spacecraft don’t need thrusters to turn and point themselves.
They can use reaction wheels, spinning flywheels. Speed one up in one direction and the entire craft rotates the other way.
Conservation of angular momentum + Newton’s 3rd law.
Very cool way to save fuel.
Starship is a monster!
Full stack: 124 m / 407 ft tall
Diameter: 9 m / 29.5 ft
Booster holds ~3,650 t propellant; ship ~1,600 t
Payload: 100+ tonnes to LEO + ~1,000 m³ volume
Fully fueled mass: ~5,000+ tonnes (taller than Saturn V)