28:
19:
Retired community college teacher and eclipse chaser with interests in physics, math, chemistry and astronomy...
27:
33:
8:
7:
22:
14:
26:
1:
55:
41:
40:
46:
36:
30:
23:
54:
53:
49:
48:
47:
45:
44:
43:
42:
34:
12:
11:
5:
52:
50:
39:
38:
31:
21:
13:
10:
9:
6:
4:
3:
2:
51:
37:
32:
29:
25:
24:
20:
17:
18:
15:
35:My sandbox
16:Hi...
Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
