In computing

255 is a special number in some tasks having to do with computing. This is the maximum value representable by an eight-digit binary number, and therefore the maximum representable by an unsigned 8-bit byte (the most common size of byte), the smallest common variable size used in high level programming languages (bit being smaller, but rarely used for value storage). The range is 0 to 255, which is 256 total values.

For example, 255 is the maximum value

IN summary 

Low-values = base 16 Hex'00' = zero = decimal 000 

High-values = base 16 Hex'FF' = decimal 255

Why is the signal HIGH-Five?

It is a brain control signal used to control  university professors and  science / math/ engineering students in the Aldous Huxley........BRAVE NEW WORLD social; psychology  manipulations wars ...via televisions and print.

High-Five --> High-values - 5 = 255 - 5 = 250  --> convert back to Base 16 Hex'fa'  --> language stem prefix --> Fa --> needed to control base 16 oxygen breathing FA structure -->  Fa,Cult.y.

Thus the  university sports and sports industry control all math and physics professors ...who are  social science puppets. String theory forewarned them  about that possibility of puppet string theory ..... but INTELLECTUAL arrogance ignored the practical  wisdom  and STREET LEVEL psychology needed to  INTELLECTUALLY fight the television  brain programming TRICKS.
Consequently, the 23 chromosome students hostages at the Wisconsin string theory tragedy DEMO ...Marionette puppet THEATER at Marinette High School ...with Nature's statistical sample space VICTIM .... the Boy Scout SAMPLE Sam Hengel.

The HIGH-Five signal also claimed the life of   Future Farmer's of America ......Wisconsin specimen base 16 Hex'Fa'  = 250 --> Matt Anderson.

The universities, farm organizations and Boy Scouts will not help research these symbolic problems that are used to program the brain bio-computers of teenage students and young men.

The secret languages of the universities provide some CLUES ..

UW Animal Research Achievements « Animals in Research and ...

Based on research with monkeys, horses, chickens and mice, the late UW –Madison scientist Howard Temin shared the 1975 Nobel Prize for predicting and ... 

In year 2012 ....in George Orwell double-speak languages ...the above message also says 

Doublespeak - Wikipedia, the free encyclopedia

Animal Sciences | College of Agricultural and Life Sciences ...