Einstein’s last message was a dire warning against nuclear war that’s still relevant today. Here’s what it said. [Video]

Shortly before his death in 1955, Nobel Prize winner Albert Einstein signed a manifesto written by philosopher Bertrand Russell.

It was Einstein’s last public act and would come to be named the Russell-Einstein Manifesto.

The document expressed fear that the public didn’t understand the power of newly developed hydrogen bombs, which are even more powerful than atomic ones.

In the manifesto, Russell warned, “that a war with H-bombs might possibly put an end to the human race.”

Though the number has fluctuated over the decades, there are still around 12,500 nuclear weapons in nine countries today, so some of the scientists’ fears communicated in the manifesto continue to be relevant today.

‘The war is won, but the peace is not.’

In the years after the US dropped two atomic bombs on the Japanese cities of Hiroshima and Nagasaki, many of the scientists involved in the Manhattan Project developing the weapons expressed remorse for their work.

They feared how similar bombs would be used in future wars…