Menu

Blog

Page 5449

Apr 25, 2021

Study: ‘Fingerprint’ for 3D printer accurate 92% of time

Posted by in categories: computing, health, internet, security

3D printing is transforming everything from fashion and health care to transportation and toys. But this rapidly evolving technology, also known as additive manufacturing, can threaten national security and intellectual property rights.

To reduce illicit use of 3D printers, Zhanpeng Jin, Ph.D., associate professor in the Department of Computer Science and Engineering at the University at Buffalo, is developing a way to track the origin of 3D-printed items.

His concern was that, as long as people have the digital design for an item, which can be downloaded from the internet, sometimes as open-source material, people can print out anything they want, which can range from computer parts and toys to fully functional handguns and assault rifles.

Apr 25, 2021

Rotational dynamics reduce interference between sensory and memory representations

Posted by in category: futurism

During implicit learning, the authors find that sensory representations in mouse auditory cortex evolve over time, rotating into orthogonal memory representations. This allows short-term memories to avoid interference from new sensory inputs.

Apr 25, 2021

C-Reactive Protein: What’s Optimal? A Comprehensive Review

Posted by in category: life extension

Papers referenced in the video:

The baseline levels and risk factors for high-sensitive C-reactive protein in Chinese healthy population:
https://immunityageing.biomedcentral.com/articles/10.1186/s1…0126-7

Continue reading “C-Reactive Protein: What’s Optimal? A Comprehensive Review” »

Apr 25, 2021

Have dark bosons been spotted in ytterbium isotopes?

Posted by in category: particle physics

Circa 2020 o.o


Independent spectroscopy studies give equivocal results.

Apr 25, 2021

Geothermal Energy Could Provide All the Energy the World Will Ever Need

Posted by in category: energy

Circa 2010


Norway — There is a solution for the world’s insatiable energy needs. It is CO2-free and safe. And it’s located right under our feet.

Ever since Jules Verne wrote in 1864 about a trip to the Earth’s interior, people have dreamed of bringing up heat from the centre of the planet. So far we have only scratched the surface, but researchers are now beginning to work down into the depths.

Continue reading “Geothermal Energy Could Provide All the Energy the World Will Ever Need” »

Apr 25, 2021

Axion particle production in a laser-induced dynamical spacetime

Posted by in category: particle physics

We consider the dynamics of a charged particle (e.g., an electron) oscillating in a laser field in flat spacetime and describe it in terms of the variable mass metric. By applying Einstein’s equivalence principle, we show that, after representing the electron motion in a time-dependent manner, the variable mass metric takes the form of the Friedmann–Lemaître–Robertson–Walker metric. We quantize a pseudo-scalar field in this spacetime and derive the production rate of electrically neutral, spinless particles. We show that this approach can provide an alternative experimental method to axion searches.

Apr 25, 2021

Cosmism: Russia’s religion for the rocket age

Posted by in categories: robotics/AI, space travel, transhumanism

This brave new world seeks to meld space and cyber-space. For both Immortalists and Transhumanists, the human personality lies in the brain, which can live eternally if “uploaded” onto a computer, a favoured theme of science fiction writers. The company Neuralink aims to provide brain-machine interfaces which merge human consciousness and artificial intelligence – helping humans “stay relevant” in a world dominated by AI.


On 28 December 1903, during a particularly harsh Russian winter, a pauper died of pneumonia on a trunk he had rented in a room full of destitute strangers. Nikolai Fyodorov died in obscurity, and he remains almost unknown in the West, yet in life he was celebrated by Leo Tolstoy and Fyodor Dostoevsky, and by a devoted group of disciples – one of whom is credited with winning the Space Race for the Soviet Union.

Now, just as he prophesied, Fyodorov is living a strange afterlife. He has become an icon for transhumanists worldwide and a spiritual guide for interplanetary exploration.

Continue reading “Cosmism: Russia’s religion for the rocket age” »

Apr 24, 2021

Z-Pinch fusion-based nuclear propulsion

Posted by in categories: military, nuclear energy, space

Circa 2013


Fusion-based nuclear propulsion has the potential to enable fast interplanetary transportation. Due to the great distances between the planets of our solar system and the harmful radiation environment of interplanetary space, high specific impulse (Isp) propulsion in vehicles with high payload mass fractions must be developed to provide practical and safe vehicles for human space flight missions.

The Z-Pinch dense plasma focus method is a Magneto-Inertial Fusion (MIF) approach that may potentially lead to a small, low cost fusion reactor/engine assembly [1]. Recent advancements in experimental and theoretical understanding of this concept suggest favorable scaling of fusion power output yield [2]. The magnetic field resulting from the large current compresses the plasma to fusion conditions, and this process can be pulsed over short timescales (10−6 s). This type of plasma formation is widely used in the field of Nuclear Weapons Effects testing in the defense industry, as well as in fusion energy research. A Z-Pinch propulsion concept was designed for a vehicle based on a previous fusion vehicle study called “Human Outer Planet Exploration” (HOPE), which used Magnetized Target Fusion (MTF) [3] propulsion.

Apr 24, 2021

This artist is wearing a mini-greenhouse on his head

Posted by in category: futurism

Click on photo to start video.

Inspired by the lush oases in Tunisia, a Belgian artist has developed a ‘portable oasis’, cocooning his head in a bubble of air purified by the aromatic plants inside https://reut.rs/3apLI6G

Apr 24, 2021

Hoverboard Test! (Part 2/2)

Posted by in categories: energy, engineering, media & arts, transportation

Check out http://kiwico.com/Hacksmith50 for 50% off your first month of any crate!

Thanks to Grepow for providing the Epic LiPo batteries ► http://bit.ly/2JLYClt.
Visit Twin City Graphics for all your vinyl wrapping needs ► http://www.twincitygraphics.com/
Check out K&J Magnetics for all your magnet needs! https://www.kjmagnetics.com/

Continue reading “Hoverboard Test! (Part 2/2)” »