368
NEW EXPERIMENTS
TRACT 34.
The Pendulum the same as left hanging since yesterday,■with the addition of the balls and plugs in it.
This day’s experiments a good set.
2 oz
4 oz
Mean length of charge - -
1*7
3-24
Mean recoil with hall - -
1T05
17-78
Ditto without . - - - -
2’65
6-10
Difference or c - - - -
8-40
11-68
Hence velocity by the recoil
929
1295
Mean ditto by the pendulum
968
1375
Difference, gun less - -
39
80
Or the part - - - - «
I
2-4
I
TT
56. Thursday, July 31, 1783 5 from 10 till 12.Fine warm weather.
Barometer 30-3 ; Thermometer 69° at 10 A. M.
N°
Pow-
der
Ball’s
Vibration of
Point
struck
1 Plugs
Values of
VeloC.
ball
wt
diam
gun
pend
p
s
n
oz
oz dr
inches
inches
inches
inches
in
lb
inches
feet
1
2
2-5
2
16
23-8
3
16
25-9
4
16
23-8
5
16
23-5
6
16
16 13
1-96
37-3
17-8
89-6
6
717-2
78-18
40-15
1379
7
16
16 13
1-96
37-3
18-9
90-5
6
718-6
78-20
40-15
1453
8
16
16 13
1-96
34-5
16-4
90-2
6
720-1
78-22
40-15
1268
9
12
16 13
1-96
31-7
17’7
89-2
5
721-6
78-24
40-15
1387
10
12
16 12i
1-96
33-2
18-9
89-8
8
723 0
78-26
40-14
1477
11
12
16 12i
1-96
30-8
17-5
89-8
8
724-5
78-28
40-14
1371
12
12
21-0
13
12
18-3
14
12
18-8
— )