Blog: Heavier ~ Than ~ Air

Plenty happened to the world in 1989 - there's your 20 years, mathematicians - from the celebratory fall of the Berlin Wall to the tragic massacre in Tiananmen Square and huge earthquake in San Francisco. With my vague recollection of the general time period as opposed to the specific events, it's always interesting to dig back and see how history remembers the details. OFFICIAL SITE [...]