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Jul 11, 2024

Starlink Mini is now widely available and doesn’t need a residential subscription

Posted by in categories: energy, internet

You can now get a Starlink Mini in the US, wherever you are and even if you’re not paying for a residential subscription. SpaceX started offering select users the new Starlink dish model that’s small enough to fit in a backpack in late June. Despite its small size that makes it easy to transport and carry around, the Mini used to require an existing $150 standard service plan — you could only tack on the Mini Roam service for an additional fee of $30 a month. Now, you can get it on its own with a roaming service.

The mobile regional plan costs $150 a month and will give you access to unlimited data. It’s probably the better option if you live in an RV or travel to remote locations for extended periods of time. Meanwhile, the Mini Roam plan costs $50 a month and will give you access to 50GB of data, which is likely enough if you don’t live on the road full time. Take note that you can use Mini Roam in motion anytime, as long as you’re on land. The mobile regional plan has limited in-motion use and only works when you’re going slower than 10mph, though you can choose to add data meant for in-motion use on a per-GB basis.

Like Starlink’s other terminals, you’ll have to pay for the Mini up front. It will cost you $599 for the kit, which includes a kickstand, a pipe adapter, a power supply and a cord with a USB-C connector on one end and a barrel jack on the other. (As The Verge notes, you can plug it into a 100W USB-PD power bank if you don’t have access to other power sources.) There’s no Wi-Fi router with the kit, because it’s already integrated into the dish, giving you one less component to carry.

Jul 11, 2024

A High-Energy Proton Beam Could Finally Connect Us to Proxima Centauri

Posted by in category: space travel

This propulsion system may speed up the future of interstellar travel.

Jul 11, 2024

Mass production may soon make ultra-large nano transparent screens accessible to everyone

Posted by in category: innovation

A super-sized Nano Transparent Screen (NTS) has been developed and commercialized for the first time in the world. This innovative screen can adjust its transparency according to the environment and can be produced at a low cost, paving the way for the widespread adoption of large transparent screens, which until now have been prohibitively expensive.

Jul 11, 2024

Synthetic Biology is in Fashion

Posted by in categories: bioengineering, biological, food, internet, military, sustainability

Spider spidroin revives the silken splendor.

In their quest to make silk powerful again, not by status but rather by thread strength, scientists turned to an arachnoid. Dragline silk, the thread by which the spider hangs itself from the web, is one of the strongest fibers; its tensile strength—a measure of how much a polymer deforms when strained—is almost thrice that of silkworm silk.2

Beyond durable fashion garments, tough silk fibers are coveted in parachutes, military protective gear, and automobile safety belts, among other applications, so scientists are keen to pull on these threads. While traditional silk production relies on sericulture, arachnophobes can relax: spider farms are not a thing.

Jul 11, 2024

Robust molecule gives organic electronic devices a boost

Posted by in categories: computing, mobile phones

RIKEN chemists have developed a molecule that enhances the performance of organic electronic devices and is also more stable than previous alternatives, raising the chances that it could be used in industrial manufacturing processes (Advanced Materials, “A novel n-type molecular dopant with a closed-shell electronic structure applicable to the vacuum-deposition process”).

RIKEN researchers were able to improve the flow of electrons into a layer of buckminsterfullerene (depicted) in an organic electronic device by using a new dopant called DP7. (© Laguna Design/Science Photo Library)

Conventional electronic devices are made from hard semiconductors such as silicon, but increasingly organic semiconductor molecules are appearing in devices such as televisions and cell-phone displays that use organic light-emitting diodes (OLEDs).

Jul 11, 2024

Shaping the future of polymer nanocarriers

Posted by in categories: biotech/medical, chemistry

Scientists have taken a significant step towards the development of tailor-made chiral nanocarriers with controllable release properties. These nanocarriers, inspired by nature’s helical molecules like DNA and proteins, hold immense potential for targeted drug delivery and other biomedical applications.

The study, led by Professors Emilio Quiñoá and Félix Freire at the Center for Research in Biological Chemistry and Molecular Materials (CiQUS), highlights the intricate relationship between the structure of helical polymers and their self-assembly into nanospheres. By carefully designing the secondary chain, the researchers were able to modulate the acidity of the polymers, influencing their aggregation patterns and leading to the formation of nanoespheres with varying densities.

Intriguingly, the size of these nanospheres could be precisely controlled by simply adjusting the water-to-solvent ratio during their preparation, eliminating the need for stabilizers. This eco-friendly approach paves the way for sustainable synthesis of these particles.

Jul 11, 2024

New method for determining the exchange energy of 2D materials

Posted by in categories: energy, nanotechnology

Ferromagnetism is an important physical phenomenon that plays a key role in many technologies. It is well-known that metals such as iron, cobalt and nickel are magnetic at room temperature because their electron spins are aligned in parallel — and it is only at very high temperatures that these materials lose their magnetic properties.

Researchers led by Professor Richard Warburton of the Department of Physics and the Swiss Nanoscience Institute of the University of Basel have shown that molybdenum disulfide also exhibits ferromagnetic properties under certain conditions. When subjected to low temperatures and an external magnetic field, the electron spins in this material all point in the same direction.

In their latest study, published in the journal Physical Review Letters (“Exchange energy of the ferromagnetic electronic ground state in a monolayer semiconductor”), the researchers determined how much energy it takes to flip an individual electron spin within this ferromagnetic state. This “exchange energy” is significant because it describes the stability of the ferromagnetism.

Jul 11, 2024

Time might be a mirage created by quantum physics, study suggests

Posted by in category: quantum physics

Physicists have struggled to understand the nature of time since the field began. But a new theoretical study suggests time could be an illusion woven at the quantum level.

Jul 11, 2024

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Posted by in categories: cosmology, physics

But when it comes to the origin of the Universe, we don’t know what forces are at play. We actually can’t know, since to know such force (or better, such fields and their interactions) would necessitate knowledge of the initial state of the Universe. And how could we possibly glean information from such a state in some uncontroversial way? In more prosaic terms, it would mean that we could know what the Universe was like as it came into existence. This would require a god’s eye view of the initial state of the Universe, a kind of objective separation between us and the proto-Universe that is about to become the Universe we live in. It would mean we had a complete knowledge of all the physical forces in the Universe, a final theory of everything. But how could we ever know if what we call the theory of everything is a complete description of all that exists? We couldn’t, as this would assume we know all of physical reality, which is an impossibility. There could always be another force of nature, lurking in the shadows of our ignorance.

At the origin of the Universe, the very notion of cause and objectivity get entangled into a single unknowable, since we can’t possibly know the initial state of the Universe. We can, of course, construct models and test them against what we can measure of the Universe. But concordance is not a criterion for certainty. Different models may lead to the same concordance — the Universe we see — but we wouldn’t be able to distinguish between them since they come from an unknowable initial state. The first cause — the cause that must be uncaused and that unleashed all other causes — lies beyond the reach of scientific methodology as we know it. This doesn’t mean that we must invoke supernatural causes to fill the gap of our ignorance. A supernatural cause doesn’t explain in the way that scientific theories do; supernatural divine intervention is based on faith and not on data. It’s a personal choice, not a scientific one. It only helps those who believe.

Still, through a sequence of spectacular scientific discoveries, we have pieced together a cosmic history of exquisite detail and complexity. There are still many open gaps in our knowledge, and we shouldn’t expect otherwise. The next decades will see us making great progress in understanding many of the open cosmological questions of our time, such as the nature of dark matter and dark energy, and whether gravitational waves can tell us more about primordial inflation. But the problem of the first cause will remain open, as it doesn’t fit with the way we do science. This fact must, as Einstein wisely remarked, “fill a thinking person with a feeling of humility.” Not all questions need to be answered to be meaningful.

Jul 11, 2024

Google’s claim of quantum supremacy has been completely smashed

Posted by in categories: computing, quantum physics

Google’s Sycamore quantum computer was the first to demonstrate quantum supremacy – solving calculations that would be unfeasible on a classical computer – but now ordinary machines have pulled ahead again.

By Matthew Sparkes

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