"I'm a struggling artist, frustrated writer, ...
The force of gravity between two objects is the multiplied mass of those two objects, multiplied by the gravitational constant and divided by the square of the distance between the two objects.
More commonly known as E=mc2, this formula expresses how much energy is contained in a stationary object with mass relative to a plane of reference. When mass is gone it converts to energy, and energy can be converted to mass via this formula.
The sum of the squares of the legs of a right triangle is equal to the square of the hypotenuse of the same right triangle. Useful for determining the length ladders should be as well as the size of TV screens.
Generally used as a term for any foreigner, aliens in this context pertain to beings from places besides Earth, residing in other planets and may or may not have visited this planet before.
The art of reading one's palm and the patterns inscribed thereupon and then subsequently predicting the person's fate and character without prior knowledge of them. It is an art because it cannot properly be studied.
The magical energy that flows through all things that have magical ability. Redirecting the flow of mana and transmuting it into different forms of energy is what comprises magic.
The vital life energy that flows through all living things. The concept is most used in martial arts and acupuncture as these deal with redirecting the flow of chi.
The act of inserting messages into other media that does not appear to contain that message so that the intended recipients do not even know that they received the subliminal message but will act upon it anyway.