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 SI prefix giga represents a factor of 10 9, or in exponential notation, 1E9. So 1 gigajoule = 10 9 joules. The definition of a joule is as follows: The joule (symbol J, also called newton meter, watt second, or coulomb volt) is the SI unit of energy and work.The unit is pronounced to rhyme with tool, and is named in honor of the physicist James Prescott Joule (1818-1889).ype in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3, 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!