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What Happens When a Black Hole Dies

Popular Mechanics US

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November - December 2022

This issue only compounded in the mid-1970s when Hawking took the principles of quantum physics and applied them to the edge of black holes.

- Robert Lea

What Happens When a Black Hole Dies

IN WHAT IS ARGUABLY HIS MOST SIGNIFICANT contribution to science, Stephen Hawking suggested that black holes can leak a form of radiation that causes them to gradually ebb away and die in a massive explosive event.

This "Hawking radiation" causes a problem at the intersection of general relativity and quantum physics-the former being the best description we have of gravity and the universe on a cosmic scale, while the latter is the model of physics that governs the very small.

Physicists have been working to solve the paradox for nearly 50 years, but we may finally be on the verge of a solution, thanks to a review published in August in the journal Europhysics Letters.

FLERE HISTORIER FRA Popular Mechanics US

Popular Mechanics US

Popular Mechanics US

The Tomb of Jesus Christ

AT THE PLACE WHERE Jesus was crucified, there was a garden, and in the garden a new tomb, in which no one had ever been laid.\"-John 19:41.

time to read

2 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

Actual Random Numbers

A LARGE TEAM OF SCIENTISTS CLAIMS to have achieved “certified randomness” using a quantum computer.

time to read

3 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

STURDY STEEL WIENER DOG BOOT SCRAPER

A recent North Atlantic mud season became the inspiration for this weekend metalsmithing project.

time to read

3 mins

September/October 2025

Popular Mechanics US

An Ancient Scarab Amulet

CHILDREN ARE ALWAYS picking stuff up off the ground—usually junk. But sometimes, they can find real treasure.

time to read

2 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

Inside the Glitter LAB

How the tiniest trace of red shimmer helped solve one of California's most brutal crimes.

time to read

15 mins

September/October 2025

Popular Mechanics US

THE POWER OF EARTH'S ROTATION

AS CLIMATE CHANGE CONTINUES TO impact countries and communities around the world, humanity is hungry for alternative sources of green energy.

time to read

1 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

The SECRET VENOMOUS HISTORY of Ozempic

How a deadly toxin from a desert dwelling lizard led to one of the biggest medical breakthroughs in modern times.

time to read

15 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

ONE BUCKET. TEN GENIUS HACKS.

THERE'S A $5 DO-IT-ALL PROBLEM SOLVER JUST SITTING IN YOUR GARAGE. PUT IT TO WORK!

time to read

4 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

Lucid Dreaming

THE STATE KNOWN AS LUCID DREAMING IS an unquestionably surreal one, and it just got even more so. A team of researchers at Radboud University Medical Center in the Netherlands has discovered that lucid dreaming is a state of consciousness separate from both wakefulness and REM sleep (the state usually associated with dreams). In fact, it is associated with its own type of brain activity.

time to read

1 mins

September/October 2025

Popular Mechanics US

Popular Mechanics US

The Ancient People of the Sahara

BETWEEN 14,800 AND 5,500 YEARS AGO, the Sahara—known for being one of the driest places on Earth—actually had enough water to support a way of life. Back then, it was a savanna that early human populations settled to take advantage of the favorable farming conditions. Among them was a mysterious people who lived in what is now southwestern Libya and should have been genetically subSaharan—except, upon a modern analysis, their genes didn’t reflect that.

time to read

1 mins

September/October 2025

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