Chemically, an amino acid is a molecule that has a carboxylic acid group and an amine group that are each attached to a carbon atom called the α carbon. Each of the 20 amino acids has a specific ...

Samples from the asteroid Bennu contain the building blocks of life as we know it. Scientists are enthusiastic.

Electrostatics: Electric field, potential, Gauss’s law, capacitors. Current Electricity: Kirchhoff’s laws, circuits, RC/RL circuits. Magnetism: Magnetic field ...