★ 6.5
★ 4.9
★ 6.0
★ 4.8
★ 6.1
★ 6.4
★ 7.6
★ 5.3
★ 5.9
★ 6.8
★ 5.1
★ 3.3
★ 7.0
★ 0.0
★ 6.2
A friend in need is a friend indeed. But what kind of help does a scientist needs from an old friend?
