2.71828 are the first digits of the constant “e”.r^2 is r r(1/y)^-1 is ysqrt(x^2) is xmass times acceleration is equal to the sum of forces applied to an object, so force/acceleration is equal to mass.
The bump on the head is in the Monday-Saturday timeline. The Sunday timeline is separate (in this one Bucky was attacked by the ferrets after trying to trojan-horse their party, and was partially shaved).
The worst ones are the little traffic cones.