T
- tailgating
Closely following a person into a secure area and thereby circumventing its physical security system.
- ton
In cooling, the amount of heat involved in melting one ton of ice in a day. Data Center air handler capacity is typically rated in tons. One cooling ton equals 12,000 BTUs.
- total internal reflection
An optical phenomenon in which light attempting to pass from one medium to another at a given angle is reflected back toward the center rather than continuing through the boundary.
Total internal reflection is what enables light to continue traveling down a long, curving fiber optic cable.
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