Lifeboat Foundation

But it’s only the first of a series of tests before astronauts are allowed to…

WASHINGTON — As Blue Origin breaks ground on a new factory for producing rocket engines, the company says development of its BE-4 engine will be completed later this year.

Blue Origin held a groundbreaking ceremony in Huntsville, Alabama, Jan. 25 to formally mark the start of construction of a factory that will be used for building BE-4 engines. The company announced plans to build the factory there in June 2017, contingent on the selection of the engine by United Launch Alliance for its Vulcan rocket. ULA picked the BE-4 in September 2018.

The factory, scheduled for completion in March 2020, will build dozens of BE-4 engines a year for both Vulcan as well as Blue Origin’s own New Glenn vehicle. Both rockets are scheduled to make first launches in 2021. Vulcan will use two BE-4 engines in its first stage while New Glenn’s reusable first stage will be powered by seven BE-4 engines.

The Big Bang didn’t just result in our familiar universe, according to a mind-bending new theory — it also generated a second “anti-universe” that extended backwards in time, like a mirror image of our own.

A new story in Physics World explores the new theory, which was proposed by a trio of Canadian physicists who say that it could explain the existence of dark matter.

The new theory, which is laid out in a recent paper in the journal Physical Review of Letters, aims to preserve a rule of physics called CPT symmetry. In the anti-universe before the Big Bang, it suggests, time ran backwards and the cosmos were made of antimatter instead of matter.

Continue reading “New Paper: A ‘Mirror Image’ of Our Universe Existed Before The Big Bang” »

One of the most powerful techniques in machine learning, generative adversarial networks, has been tested on a quantum computer for the first time.

Prof Pugh is using motion-tracking sensors to test how trainee surgeons use the instruments, for example in a simulated hernia repair. Their performance is measured, videoed and compared with best practice at each stage, so they can understand where they need to improve.

“Like Olympic athletes, they can practise repeatedly until they understand the routine and where they need to improve. That is the goal in training surgeons.” The next step is to use sensors in real operations.

Being able to measure pressure will help create better surgical robots, says Richard Trimlett, a cardiothoracic surgeon and head of mechanical support at the Royal Brompton and Harefield Trust, London.

The old adage “use it or lose it” tells us: if you stop using your muscles, they’ll shrink. Until recently, scientists thought this meant that nuclei—the cell control centers that build and maintain muscle fibers—are also lost to sloth.

But according to a review published in Frontiers in Physiology, modern lab techniques now allow us to see that nuclei gained during training persist even when muscle cells shrink due to disuse or start to break down. These residual ‘myonuclei’ allow more and faster growth when muscles are retrained—suggesting that we can “bank” muscle growth potential in our teens to prevent frailty in old age. It also suggests that athletes who cheat and grow their muscles with steroids may go undetected.

Quantum physics just beat classical physics again.

A single quantum particle can send a two-way signal, scientists have discovered — something that’s impossible in classical physics. That means a particle can essentially send messages to itself thanks to the whacky state of uncertainty known as superposition.

Superposition states that one particle can occupy two positions at once, and that’s how the two-way communication happens.

Continue reading “Quantum Theory Bends The Limits of Physics, Showing Two-Way Signaling May Be Possible” »

Saint Jean Carbon has announced that it is developing a new form of graphene battery technology and will start building the first prototype of its graphene gel salt water batteries. Batteries based on this technology should charge faster, run longer and theoretically may last indefinitely. The project’s long term goal is to have a series of three full production batteries ready for launch in spring 2020.

Saint Jean Carbon stated that salt water battery technology has been in research for about 5 years. Continued advancement slowed due to limited voltage capacity in comparison with Lithium batteries. Now with the use of graphene in a highly concentrated salt water gel, graphene can now be used without worrying about the graphene re-stacking, which would reduce the intercalation rate. Salt water batteries are much safer, won’t burn and have significantly less raw material cost.

The Company plans on building a “flex” production line that will allow a number of companies to share in the facility on a fee for use basis. The Company’s first production will concentrate on three specific battery types:

Parts of human DNA are of viral origin: many of them were inserted into the primordial genetic material of our ancestors many millions of years ago and have been inherited by successive generations ever since. Thus, they are not thought to vary much in the genomes of modern humans. Human endogenous retroviruses (HERV) are by far the most common virus-derived sequences in our genome. New research published in Mobile DNA shows a mechanism that has introduced more inter-individual variation in HERV content between humans than previously appreciated.

Jainy Thomas & Cédric Feschotte 25 Jan 2019.