The evolution of Motorola phones, from the bag phone to the iconic Razr flip phone that's making a comeback this year

Tech Insider : Technology
motorola razr
The Motorola Razr became one of the most iconic mobile phones when it was released in 2004.

Damian Dovarganes/AP

A manhole cover launched into space with a nuclear test is the fastest human-made object. A scientist on Operation Plumbbob told us the unbelievable story.

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craters from nuclear weapons tests in nevada pockmark the barren dessert land
The pockmarked Nevada Testing Site, strewn with craters from all the nuclear weapons tests that took place there.

NNSA

Newly discovered letter that George Washington wrote in 1787 hints at money problems

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A letter written by George Washington to Israel Shreve in March 1787.
A portrait of George Washington, left, and a letter written by in March 1787, right, in a composite image.

Raab Collection, Getty Images

Check out the Codex Sassoon. It's the oldest, most complete Hebrew bible, and it's set to be sold by Sotheby's for $30 to $50 million.

Tech Insider
The Codex Sassoon
The Codex Sassoon is the oldest nearly complete Hebrew bible. It'll be auctioned by Sotheby's in May for somewhere between $30 to $50 million.

Sotheby’s

Maryland considers a bill incentivizing the 4-day workweek. Here's how the 5-day workweek became so popular in the first place.

Tech Insider
Remote worker
The movement for decent working hours began in 1866.

Salvatore Laporta/KONTROLAB

A heart-shaped pendant linked to Henry VIII was dug up on an English farm, pointing to a more romantic side to the Tudor king

Tech Insider
Two gloved hands hold the pendant, showing the front of the heart-shaped locket.
This pendant is thought to be associated with Henry VIII. An amateur detectorist discovered the locket by chance in a field in England.

Dan Kitwood/Getty Images

Photos show the horrors of Auschwitz, the largest and deadliest Nazi concentration camp, 78 years after its liberation

Tech Insider : Politics
view of auschwitz II
An aerial view of the Auschwitz II-Birkenau extermination camp on December 19, 2019 in Oswiecim, Poland.

Christopher Furlong/Getty Images

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