51,371 reputation
248112
bio website
location
age
visits member for 3 years, 2 months
seen 5 hours ago

"Nothing is more important than to see the sources of invention which, in my opinion, are more interesting than the inventions themselves."

--Gottfried von Leibniz (1646-1716)


932
× 273
158
× 49
46
× 17
29
× 4
855
× 273
141
× 38
43
× 8
28
× 11
599
× 139
127
× 40
42
× 20
26
× 16
402
× 82
98
× 23
42
× 5
26
× 10
319
× 109
87
× 31
39
× 10
23
× 16
289
× 73
78
× 33
37
× 15
23
× 11
244
× 77
61
× 18
36
× 18
23
× 8
240
× 49
61
× 5
33
× 10
23
× 3
239
× 68
57
× 21
32
× 8
21
× 8
224
× 70
54
× 11
32
× 6
21
× 8
224
× 67
53
× 19
30
× 9
20
× 6
216
× 104
49
× 3
29
× 17
20
× 6
185
× 64
47
× 24
29
× 6
20
× 2