370
NEW EXPERIMENTS
TRACT 34.
57. Tuesday, August 12, 1783 ; from 10 till 2*.The weather variable. Sometimes flying showers.Barometer 30*0; Thermometer 64° at 3 p. m.
N c
Pow-
der
Ball’s
Vibration of
Point
struck
03
Values of
Veloc.
ball
wt
diam
gun
pend
P
g
n
oz
oz dr
inches
inches
inches
inches
in.
lb
inches
feet
1
2
i
2-55
2
2
2-50
3
2
2-50
4
16
24-6
5
16
21-8
6
16
24-5
7
16
16 12*
1-96
36 0
19-6
88-3
8
663-0
77-35
40-20
1411
8
16
16 12*
1-96
36-7
19-8
88-6
10
664-6
77-38
40-19
1424
9
2
2-5
10
16
28-25
11
16
26-4
12
16
24'7
13
16
16 12*
P96
39-1
23 "2
87-8
11
666-3
77-41
40-19
1689-
14
16
16 12*
1-96
35-8
21-7
88-5
10
667-9
77-44
40-19
1572
15
16
16 12*
1 '96
37-9
23-3
91-1
11
669-6
77-47
40-19
1644
16
16
16 12*
1-96
40*7
24-8
90-6
11
671-2
77-50
40-19
1765
17|
16 |
16 12*
1-96
42-4
24-2|
91-3
10
672-9
77-53
40-18
1714
The Gun was n° 1 in the first S rounds ; and n° 2 in the
rest to the end. The weight, &c, as before.
The Pendulum was a new block, made of sound dry.elm, painted, and hung in the same frame as the former ;but turned end-ways, or the end of the fibres towards thegun; whereas the former was side-ways. It was firmlybound round with strong iron bars; but neither plates ofiron nor lead were put within it. The dimensions of theblock are,
Length from front to backDepth of the face - -Breadth of the same - -Its weight with iron - -
Radius to tape as beforeTo centre of gravityOscillations per minute
26* inches24*
18*
664 lb117-8 inches77-3540-20