From what I understand, the word midnight is usually interpreted incorrectly. Midnight is written as 12am which would imply that it's in the morning. Therefore, it should be at the start of the day. On the other hand, both Dictionary.com and the Oxford Dictionary define it as twelve o'clock at night.
James Prescott Joule. The English physicist James Prescott Joule (1818-1889) proved that mechanical and thermal energies are interconvertible on a fixed basis, and thus he established the great principle of conservation of energy.
The joule (J) is the unit of measure for energy used in the International System of Units (SI), and the one accepted in scientific circles.The unit is used in all equations and calculations involving energy.he joule is a unit of measure for energy. Sitting quietly, a person generates 100 J of heat every second. Individuals pay per kilowatt hour for the electricity they use in their homes. The amount of energy required to lift an apple 1 meter (3.3 feet) is roughly equivalent to 1 Joule.