According to Mother Jones, scientists are being sceptical of the recent announcement from Lockheed Martin, promising fusion reactors in as little as a decade, because it "is all theoretical at this stage."
[...]The challenge, essentially, is putting the sun in a box. That box, in theory, is packed full of charged particles, moving at great speeds, constrained by a strong magnetic field that enhances the probability that the particles slam into each other. With enough pressure, the particles stop resisting, and finally fuse, let off an amazing amount of energy.
The problem, says Reed, is that usually it takes just as much energy to power that controlling magnetic field as the power you get from fusion, hence the current size of the reactors. Lockheed claims to be able to harness that energy at a more efficient rate, so it can then make the reactors smaller.
|We're Running Out of Helium Thanks to Party Balloons|
|Evolution of the Universe Recreated in a Lab|
|Science ponders 'zombie attack'|
|New stunning Hubble images|
|"Gene editing can now change an entire species forever."|
|Japanese Create Ice Cream That Does Not Melt|
|Amateur-Built Electric Car Going After Record Set by Tesla|
|“Banning polluting cars in 2040 or 2050 doesn’t actually look like a very bold move.”|
|Making a Movie Inside a Video Game|
|“This conversation about how technology is hijacking people is really catching on.”|
|Google Map Shows You the Most Photographed Areas of the World|
|“Our Internet handlers, not government, are using operant conditioning to modify our behaviour today.”|
|“Human and animal cells can be 3D printed into high-resolution tissue.”|
|“Nobody is forcing the participants to stay, of course, but if they leave, they won’t be paid.”|
|“That science fiction future where robots can do what people and animals do may be closer than you think.”|
|“The shift from fuel and pistons to batteries and electric motors is unlikely to take that long.”|
|“During this phase of decline, the US was likely to go through a phase of reactionary 'fascism'.”|