Your left training wheel is contacting the ground 0.3 seconds before the right. That's causing the oscillation.
Driven by logical desperation, Sheldon resolves to finally ditch his training wheels. He enlists the help of his twin sister, Missy, to build muscle strength and learn how to ride a two-wheeled bike. The training sequences provide classic Young Sheldon physical comedy, contrasting Sheldon’s rigid, overthinking nature with Missy's street-smart, pragmatic approach to teaching him. young sheldon s04e03 tv
...and so, the square root of 144 is 12. Any questions? Your left training wheel is contacting the ground 0
Sheldon taught me to ride a bike.
Sheldon calculates the exact speed required to traverse the campus but realizes walking fast will make him perspire. He associates sweating with jocks and anxiety, describing it colorfully as "the urine of the skin". He enlists the help of his twin sister,
Let go of the seat. You're stable.