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The Laser Revolution Part I: Megawatt beams to the skies There’s a laser revolution coming: a time when megawatt-scale beams will radically transform how we ...
19th May 2025
1

The Laser Revolution Part I: Megawatt beams to the skies

from ToughSF [alt+shift+b] in science

19th May 2025
There’s a laser revolution coming: a time when megawatt-scale beams will radically transform how we produce electricity, conduct war and even upset the nuclear world order. All they have to do it reach a certain convergence of price and power. And by current projections, it...
The Lofstrom Loop: A Bridge to Space Imagine you could take a train ride to space. Tracks that slope up into the sky, higher and higher,...
9th Dec 2023
1

The Lofstrom Loop: A Bridge to Space

from ToughSF [alt+shift+b] in science

9th Dec 2023
Imagine you could take a train ride to space. Tracks that slope up into the sky, higher and higher, until you reach a plateau above the planet where it’s a straight line up to orbital velocity. That’s what’s possible with a Lofstrom Loop. But sending you into orbit is just one...
Riding Sunbeams with Solar Sails Reset your expectations of solar sails. They are a fast and free way to travel to any point in the...
26th May 2023
1

Riding Sunbeams with Solar Sails

from ToughSF [alt+shift+b] in science

26th May 2023
Reset your expectations of solar sails. They are a fast and free way to travel to any point in the Solar System, as many times as you want, any time of the year. Solar sails can carry passengers and they have a nearly unlimited number of uses. You just have to... think...
Hypervelocity Tether Rockets Rotating tethers can reach incredible velocities when they are built out of high strength materials....
10th Oct 2022
1

Hypervelocity Tether Rockets

from ToughSF [alt+shift+b] in science

10th Oct 2022
Rotating tethers can reach incredible velocities when they are built out of high strength materials. With some design features, they can greatly surpass the exhaust velocities of chemical or even nuclear rockets. They can become propulsion systems with impressive performance......
Fusion without Fissiles: Superbombs and Wilderness Orion Fusion technology today relies on expensive, building-sized equipment for ignition, or the help of...
25th Mar 2022
1

Fusion without Fissiles: Superbombs and Wilderness Orion

from ToughSF [alt+shift+b] in science

25th Mar 2022
Fusion technology today relies on expensive, building-sized equipment for ignition, or the help of an already powerful fission detonation. What if we could do away with both? Fusion power without the need for fissiles, but also small enough to be launched into space. It is...
Nuclear Conversion for Starship There has been much discussion about converting the SpaceX Starship to use nuclear propulsion. It...
14th Oct 2021
1

Nuclear Conversion for Starship

from ToughSF [alt+shift+b] in science

14th Oct 2021
There has been much discussion about converting the SpaceX Starship to use nuclear propulsion. It would allow for a great increase in specific impulse and a massive extension of mission capabilities. But is it actually worthwhile? The image above is modified from...
Fusion Highways in Space A transport system that can get spacecraft to Jupiter in 10 days, but without a massive onboard...
11th Mar 2021
1

Fusion Highways in Space

from ToughSF [alt+shift+b] in science

11th Mar 2021
A transport system that can get spacecraft to Jupiter in 10 days, but without a massive onboard reactor, using antimatter fuel or riding a gigantic laser beam?  What we need instead is a Fusion Highway to connect the Solar System in unprecedented ways.  The art above is by...
Moto-Orion: Mechanized Nuclear Pulse Propulsion The Orion nuclear pulse propulsion concept has been around for over six decades now. It is powerful...
4th Jan 2021
1

Moto-Orion: Mechanized Nuclear Pulse Propulsion

from ToughSF [alt+shift+b] in science

4th Jan 2021
The Orion nuclear pulse propulsion concept has been around for over six decades now. It is powerful and robust, but lacks the flexibility and features we expect from many more modern designs. Can we give it those additional capabilities? That cutaway is one of Matthew Paul...
Nuclear Photon Rockets: Flashlights to the Stars In this post, we will have a look at the concept of using a nuclear photon rocket for interstellar...
16th Nov 2020
1

Nuclear Photon Rockets: Flashlights to the Stars

from ToughSF [alt+shift+b] in science

16th Nov 2020
In this post, we will have a look at the concept of using a nuclear photon rocket for interstellar travel. They are an old concept that should theoretically be the ultimate form of relativistic propulsion. However, today they are unknown or unpopular. Why might that be the...
Space Tethers: Stringing up the Solar System All the methods we have used to reach space so far have been subject to the Tsiolkovsky rocket...
15th Sep 2020
1

Space Tethers: Stringing up the Solar System

from ToughSF [alt+shift+b] in science

15th Sep 2020
All the methods we have used to reach space so far have been subject to the Tsiolkovsky rocket equation - propellant must be ejected and more and more of it is needed to go further. What if we could break that equation with rotating orbital tethers? The tether I have worked...
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