IT’S a moment of conception on an interstellar scale. Australian astronomers have watched the death — and rebirth — of a distant solar system. Now they’re watching its embryonic nebula form.
Professor Lisa Harvey-Smith of the CSIRO has told the annual meeting of the Astronomical Society of Australia hosted at Swinburne University this week that the opportunity to observe the climactic phase in the life cycle of a star was extraordinary.
The cycle of a star’s life begins as it ends.
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Video Creator: Jason Shulkin, Motion Graphics Artist. www.jasonshulkin.com
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This video is the twelfth and final in a multi-part series discussing computing. In this video, we’ll be discussing the future of computing, more specifically – the evolution of the field of computing and extrapolating forward based on topics we’ve discussed so far in this series!
[0:31–5:50] Starting off we’ll discuss, the 3 primary eras in the evolution of the field of computing since its inception, the: tabulating, programming and cognitive eras.
The deadlines set for “singularity” are also seen by some as an attempt to scare and coerce governments into implementing the movement’s social and technological “agenda”. However, when the names of major tech corporations of the world like Google, Nokia and Tesla are associated with the transhumanist ideology, it is difficult to dismiss the premise and prospects of this new revolutionary socio-technological movement.
For several centuries, political movements have emanated from nationalist or religious convictions, socio-political and economic theories or even environmental concerns. However, issues of science and technology have rarely driven mainstream socio-political discourse as scientists have hardly ever indulged in propounding societal constructs for the future.
However, a technology-oriented intellectual movement may soon become the focus of political debate as 21st century science stands at the brink of reshaping human identity itself.
By the turn of the millennium, Transhumanism rose as a futurist social movement, led by some of the leading researchers and heads of global tech corporations (mostly based in the super-rich Silicon Valley), but has only recently gained greater media coverage and popularity apart from inspiring the plotlines for many Hollywood films.
Cancer is one of humanity’s biggest killers, but scientists are coming up with some creative ways to fight back. Researchers at the University at Buffalo have developed new kinds of nanoparticles that can infiltrate, heat up and kill cancer cells more effectively and efficiently than similar methods.
Using nanoparticles to fight cancer has become a growing area of research in recent years. The general concept is to get the particles into tumors, before activating them with radiation to trigger a reaction that destroys the cancer cells without harming healthy tissue. What kind of nanoparticle and radiation are used can vary, as can the type of reaction that’s triggered.
Previous work has killed tumors by activating CeF3 nanoparticles with X-rays to create toxic singlet oxygen, used infrared light to ramp up cancer’s pH balance, used laser pulses to heat up gold nanoparticles, or a combination of several of these.
Research to calculate amount of ‘space grease’ in the Milky Way found enough for 40 trillion trillion trillion packs of butter.
Hannah Devlin Science correspondent.
Humans aren’t the only ones who have harnessed the power of electricity. Some bacteria do this, too, by producing structures that extend from their surface like wires to transfer electrons over distances. Now, scientists at NASA’s Ames Research Center in California’s Silicon Valley are exploring this phenomenon to see if they can make use of these special microbes to perform essential functions on future space missions — from generating electricity to treating wastewater or producing medicines. With an experiment launching to the International Space Station, researchers will see whether the microbes work the same in space as they do on Earth.
To appreciate the rare abilities of the bacterium in question, called Shewanella oneidensis MR-1, you have to know what moving electrons around has to do with life. The transfer of electrons from one molecule to another is essential to all organisms, because it allows for the production of energy they need to survive. One reason that humans depend on oxygen is that this energy-producing chain reaction inside our cells is powered by transferring electrons to molecules of oxygen. The same goes for anything else that breathes oxygen, including Shewanella. But what makes this microorganism special is that it also has a back-up system that kicks in when the environment is low on oxygen. Shewanella keeps calm and carries on producing energy by using metals, like iron and manganese, instead.
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