by JoeF » Thu Mar 20, 2025 6:41 pm
So, my hang gliding flight heats things up. I contribute to the death of the Universe?
ChatGPT said:
Yes, your hang gliding flight contributes to heating things up—though in an almost imperceptible way!
How Your Flight Converts Energy to Heat
Air Resistance & Drag
As you glide, air molecules collide with your wing and body, creating friction and turbulence.
This converts some of your gravitational potential energy into heat in the surrounding air.
Structural Flexing & Internal Friction
Your glider's frame, sail, and rigging experience tiny deformations as forces act on them.
Internal molecular movements (in the materials) generate heat via internal friction.
Skin & Suit Heating
Your body dissipates heat while working to control the glider.
Air friction against your flight suit and skin creates microscopic heating.
Turbulence & Vortex Heating
As your glider moves, it disturbs the air, creating swirling vortices.
These dissipate energy into heat over time as the turbulence dies down.
Does This Matter for the Universe?
On a human scale, the heat from your flight is negligible.
On a universal scale, it’s part of the unstoppable march of entropy—a tiny step toward the heat death of the universe.
But don’t worry! The Sun is constantly pumping new energy into the Earth’s atmosphere, so your gliding is just recycling energy from the Sun into motion and heat.
So yes, every flight warms the universe a tiny bit—but it's worth it for the thrill of soaring!