A lunar Blackett

Submitted by alkirtley on Thu, 11/21/2019 - 16:13
Blackett Crater
Blackett Crater

Blackett Crater is a lunar impact crater. It has a diameter of 141km and lies beyond the outer ring of the Mare Orientale basin.

A birthday coincidence

Submitted by alkirtley on Thu, 11/21/2019 - 16:11

On 26 December 1883 the Northern Echo reported: “A Novel Birthday Celebration. Three brothers born in Woodland celebrated their birthdays on Friday, the 21st inst, whose united ages are 217 years, viz, Cuthbert Blackett, Crook, seventy nine years; Ralph Blackett, Woodland, seventy one years; and Robert Blackett, Lynesack, sixty seven years. They all enjoy good health.”

A quick guide to relativity

Submitted by alkirtley on Thu, 11/21/2019 - 15:50

This has nothing to do with Einstein’s theory of E=mc2. Instead it’s a quick guide aimed at those who are new to genealogy and who may be confused by some of the terms that keep cropping up. For example, what’s the precise relationship between you and your 5th cousin 2xremoved?