internet 101
It seems crazy that a tap on a screen can cross the planet, or climb to orbit and back, and still come home. Packets, latency, bandwidth, the last mile, spectrum, and how satellite internet rides the same story.
open internet 101courses · foundations
learn the pathway
The internet that feels like air. Rockets that open the door to the Moon, Mars, and beyond. Soft 101s written with genuine curiosity, because these topics are inherently cool.
rocketry 101
Humanity’s eternal desire to explore, and the incredible moment when we can actually go: Moon, Mars, searching for life. Then thrust, stages, orbits, delta-v, mass budgets, and reusability, with wonder still in the room.
open rocketry 101someday · tongue in cheek
The 201 / 301 / 401 labels are a wink at “intro, then deeper.” Not a real syllabus. Just hints at where curiosity can go next.
internet · next shelves
201
TCP handshakes that feel like secret handshakes. DNS as the phone book of the planet. Why your video call and your download fight politely for the same pipe.
301
Congestion control as weather. Routing politics. Caching, anycast, and the quiet art of making the faraway feel nearby.
401
The frontier edge: mesh in weird places, optical crosslinks, and networks that have to work when Earth is a distant peer.
rocketry · next shelves
201
Orbital mechanics you can sketch on a napkin. Gravity assists as free rides. Why “almost to orbit” is still mostly propellant.
301
Guidance, navigation, and the ugly beauty of margins. Stages, fairings, and what “success” means when the clock is a launch window.
401
Beyond LEO as a habit: lunar transfer intuition, Mars windows, and the systems that keep explorers alive once the sky opens.