Physics for Kids. 1  Work is a scalar quantity, not a vector quantity. This means that, unlike force and velocity, it has no direction, only a magnitude. 2  Another unit of work is the foot-pound. One foot-pound is equal to 1.35581795 joules. 3  The joule is also used as the standard unit of measure for energy.
IP spoofing is a technique used to gain unauthorized access to computers, whereby the intruder sends a message to a computer with an IP address indicating that the message is coming from a trusted port.
Aloof means at a distance, and not close. Shyness is often the result of being aloof. An aloof person usually needs tunnel vision for the tranquility and happiness to block out and ignore distractions that undermine his or her concentration. Yet, there are valid reasons to be aloof: such as, studying, work, or to maintain the structure of control within an organization or industry by filtering out and blocking unwanted contact.