PICTURE THIS : WORLD WAR III IS JUST hours away. In the cold vastness of space, enemy robotic spacecraft are slowly adjusting their orbits and preparing to launch a surprise attack on the US’s fleet of satellites. The uncrewed craft, with robotic arms strong enough to disable a satellite, are creeping up on American spacecraft, about to deal a knockout blow to the US military.
But down on Earth, US Space Force guardians have been keeping track of the assassin craft, knowing that in order to present as low a profile target as possible, they have just enough fuel for one attack. At the last minute, after the enemy satellites have committed to attack, the command activates the nuclear thermal propulsion (NTP) engines on the American satellites, quickly boosting them into a higher orbit and safely out of range. Later, as the enemy satellites careen unpowered into the infinite void of space, the same engines, powered by uranium, will safely return the American sats to their positions in low-earth orbit.
This capability could arrive sooner than you think. In April 2021, the Pentagon’s Defense Advanced Research Projects Agency (DARPA) announced that it commissioned General Atomics, Blue Origin, and Lockheed Martin to build the Demonstration Rocket for Agile Cislunar Operations (DRACO): the world’s first NTP system for spacecraft.
Denne historien er fra September/October 2022-utgaven av Popular Mechanics South Africa.
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Denne historien er fra September/October 2022-utgaven av Popular Mechanics South Africa.
Start din 7-dagers gratis prøveperiode på Magzter GOLD for å få tilgang til tusenvis av utvalgte premiumhistorier og 9000+ magasiner og aviser.
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Can a retired rocket engine take us to Mars?
The space shuttle's main engine was mothballed with the programme in 2011. Now NASA believes it's the future of interplanetary travel.
6 metre waves. All engines on fire. 1 500 Km from land.
How Flying Tiger 923 and its 'miracle pilot' made an impossible ocean landing.
Land Rover Discovery D300
A FEW MONTHS ago a $2 billion lottery jackpot was won in the United States. It’s fun to sometimes ponder outrageous winnings like that, and how I’d spend it, even if it’s completely detached from reality.
Volkswagen Taigo R-Line 1.0 TSI
The compact proportions make this a delightful daily commuter.
Mazda CX-5 2.2 L De Akera AWD
Floor the pedal and overtaking is achieved easily and safely.
Making the most out of your grinder
THE HUMBLE BENCH GRINDER IS A STAPLE of the handyworker's home shop, largely due to its versatility. But, while you can employ one to remove metal from just about anything, the traditional kind may not provide the precision you need for every grinding operation. Here, we shed light on the best ways to use the different types of grinders, gleaned from our testing.
Unlock your devices' full potential with a USB-C hub
AS NEW TECH SHRINKS EACH YEAR, essential ports such as USB-A, HDMI, and ethernet are being replaced by the slimmer USB-C.
WE BUILT THE WORLD'S FIRST V-8 TESLA
THE RICH REBUILDS TEAM HAD A DEAD MODEL S. THEY FIXED IT WITH A CAMARO ENGINE.
I bought a GHOST TOWN
This abandoned California mining village once had 400 buildings. Now I'm restoring the 20 that remain.
F1 taught me that speed starts with comfort
AS A FAN OF MOTORSPORT, I'M ALWAYS fascinated with the finer details that go into Formula One racing. Piloting the fastest racing cars on the planet subjects drivers to savage forces - up to 6 G's under braking which has led to an almost endless pursuit of comfort.
