Wall Colour Clock: Difference between revisions
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== Usage == | == Usage == | ||
All that you really have to remember is: | All that you really have to remember is: | ||
*The sequence in time is | *The sequence in time is Red, Green, Yellow, Blue; | ||
*That all four of these colours may appear in the top row, but only the first three may appear on the bottom (there is one all-blue test pattern, but that's done by setting a specific invalid time) | *That all four of these colours may appear in the top row, but only the first three may appear on the bottom (there is one all-blue test pattern, but that's done by setting a specific invalid time); | ||
*The left-most pair code the hour and the right-most pair code the minutes, with a five minute resolution. | *The left-most pair code the hour and the right-most pair code the minutes, with a five minute resolution. | ||
Some easy times to remember? | Some easy times to remember? | ||
*12:00 (noon or midnight) is all red | *12:00 (noon or midnight) is all red; | ||
*4:20 is all green (lol) | *4:20 is all green (lol); | ||
*8:40 is all yellow | *8:40 is all yellow; | ||
*9:45 is both columns with blue on top and red on the bottom. | *9:45 is both columns with blue on top and red on the bottom. | ||
To get you thinking about the combinations: | |||
*how many possible combinations are there? (Hint: a gross answer!) | |||
*how many combinations with only one colour showing? (Hint: see above) | |||
*how many times which only use at least one red and at least one green colour and no other colours are there (the Christmas combinations)? (no hints!) | |||
Revision as of 14:40, 8 December 2017
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Usage
All that you really have to remember is:
- The sequence in time is Red, Green, Yellow, Blue;
- That all four of these colours may appear in the top row, but only the first three may appear on the bottom (there is one all-blue test pattern, but that's done by setting a specific invalid time);
- The left-most pair code the hour and the right-most pair code the minutes, with a five minute resolution.
Some easy times to remember?
- 12:00 (noon or midnight) is all red;
- 4:20 is all green (lol);
- 8:40 is all yellow;
- 9:45 is both columns with blue on top and red on the bottom.
To get you thinking about the combinations:
- how many possible combinations are there? (Hint: a gross answer!)
- how many combinations with only one colour showing? (Hint: see above)
- how many times which only use at least one red and at least one green colour and no other colours are there (the Christmas combinations)? (no hints!)