Fig. 202. Fig. 203. The screw thread for small bolts is represented by thick and thin lines, such as was shown in Figure 152, but in larger sizes; the angles of the thread also are drawn in, as in Figure 202, and the method of doing th... Read more of Screw Threads And Spirals at How to Draw.caInformational Site Network Informational
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WHAT WAS THE TIME?

(Money Puzzles)
"I say, Rackbrane, what is the time?" an acquaintance asked our friend
the professor the other day. The answer was certainly curious.
"If you add one quarter of the time from noon till now to half the time
from now till noon to-morrow, you will get the time exactly."
What was the time of day when the professor spoke?


Answer:

The time must have been 9.36 p.m. A quarter of the time since noon is 2
hr. 24 min., and a half of the time till noon next day is 7 hr. 12 min.
These added together make 9 hr. 36 min.










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