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written by an international team of scientists proposes the creation of mini-magnetoshperes that mimic regions on the lunar surface known as radiation shelters. These shelters are created by small magnetic fields that鈥攄espite their low-intensity compared to the one we h
stanley us ave on Earth鈥攑revent high-energy particles from striking the Moon. They are also responsible for the formation of the wisp-like regions, known as lunar swirls, that are whiter than the darker, surrounding areas that have been bombarded by radiation. While the idea of magnetic shielding for spacecraft is not new, the data gleaned from the lunar surface studies has suggested a more plausible, energy-efficient design: As noted on the Physics arXiv Blog: If weak fields can protect parts of the Moon, they ought to be able to do the same for astronauts. Previous studies of magnetic shields have neglected a crucial ingredient鈥?the natural, low-density plasma that al
stanley cup ready exists in space. This plasma is so weak that it consists of just a handful of positive and negative ions in each cub
stanley quencher ic centimeter of space. But a magnetic field moving through space would sweep these ions ahead of it, causing them to bunch up into a denser region of plasma in front of the spacecraft. Because of the separation of charge within this plasma, it generates its own electric field. And this turns out to be crucial when it comes to deflecting high-energy particles from the Sun and beyond. [The autho Bwin This is what happens when you give McDonald s to organic food 8220;experts 8221;
Top image: Ascension by Hank Akins. To help us better understand the perspective of the so-called pain abolitionists, we spoke to philosopher and ethicist David Pearce. Back in 1995 he authored The Hedonistic Imperative, an influential online manifesto that urged the use of biotechnology to abolish suffering throughout the living world. After speaking with Pearce, it became clear that the technologies required to pull off such a feat will soon be within our grasp 鈥?and that there a strong moral argument to back h
stanley cup is case. But as Pearce admitted to us, a pain-free world doesn ;t necessarily imply a perfect world 鈥?just one that would be considerably more comfortable to live in. 鈥―avid, before we get into the ethics of creating a pain-free humanity, it important to consider the technological via
stanley quencher bility of such a project. Will it really be possible to remove physical pain from the human experience 鈥?鈥ㄢ€↖n a nutshell, yes. Technically, physical pain could be banished in humans and nonhumans alike. Today, the lives o
stanley quencher f hundreds of millions of people are blighted by chronic pain. Mercifully, most of us are normally pain-free. But at some point in our lives, pain of nightmarish intensity can strike and then we ;re shocked at how dreadful the experience can be. From an engineering perspective, however, pain is unnecessary. Nonbiological robots don ;t suffer its nasty raw feels at all. Our silicon robots can
