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 (IP address forgery or a host file hijack) IP spoofing, also known as IP address forgery or a host file hijack, is a hijacking technique in which a cracker masquerades as a trusted host to conceal his identity, spoof a Web site, hijack browsers, or gain access to a network.
Take ten minutes and see what internet phishing and email scams really look like. Probably the most damaging kind of email spoof is the phishing email. With this type of attack, a clever con artist is trying to lure you not to buy something, but to enter your account and password information, which can then be used for financial gain.