Menu

Blog

Page 2876

May 16, 2023

Chinese scientists develop technology to create 3D ceramic printing without support

Posted by in categories: electronics, engineering

Jiangnan University, via SCMP

Ceramics are commonly used in the fields of electronics, mechanical engineering, and aerospace because of their structural integrity. They are also common because they are resistant to wear while also having endurance to high temperatures. Yet, because of their brittleness and hardness, designing and manufacturing certain ceramic parts.

May 16, 2023

Accretion disk around black holes recreated in the lab

Posted by in category: cosmology

Imperial College researchers have created a spinning disk of plasma in a lab, mimicking disks found around black holes and forming stars.

The experiment more accurately models what happens in these disks, which could help researchers discover how grow and how collapsing matter forms stars.

As matter approaches black holes it heats up, becoming plasma—a fourth state of matter consisting of charged ions and . It also begins to rotate, in a structure called an accretion disk. The rotation causes a pushing the plasma outwards, which is balanced by the gravity of the black hole pulling it in.

May 16, 2023

VonMercier’s electric “sports hovercraft” promises exceptional agility

Posted by in category: transportation

Just because you need one. 🤔


The Von Mercier Arosa is not a car.
The Von Mercier Arosa is aiming to be the world’s first sport luxury hovercraft.

Continue reading “VonMercier’s electric ‘sports hovercraft’ promises exceptional agility” »

May 16, 2023

Robot injected in the skull spreads its tentacles to monitor the brain

Posted by in category: robotics/AI

A soft robot inserted through a hole in the skull can deploy six sensor-filled legs on the surface of the brain to monitor electrical activity. The design has been tested in miniature pigs and could someday help people who experience epileptic seizures.

By Jeremy Hsu

May 16, 2023

3D printing of unsupported multi-scale and large-span ceramic via near-infrared assisted direct ink writing Communications

Posted by in categories: 3D printing, materials

In the three-dimensional printing process of ceramic with low-angle structures, additional supporting structures are usually employed to avoid collapse of overhanging parts. However, the extra supporting structures not only affect printing efficiency, but the problems caused by their removal are also a matter of concern. Herein, we present a ceramic printing method, which can realize printing of unsupported multi-scale and large-span ceramics through the combination of direct ink writing and near-infrared induced up-conversion particles-assisted photopolymerization. This printing technology enables in-situ curing of multi-scale filaments with diameters ranging from 410 µm to 3.50 mm, and ceramic structures of torsion spring, three-dimensional bending and cantilever beam were successfully constructed through unsupported printing. This method will bring more innovation to the unsupported 3D manufacturing of complex shape ceramics.


In 3D ceramic printing, the need for additional supports can increase processing time and introduce defects during post-processing removal. Here, authors merge direct ink writing and up-conversion particles-assisted photopolymerization under near-infrared irradiation for support-free printing with controlled curing rates reducing material waste, printing time, and post-processing steps.

May 16, 2023

Researchers develop a paper-thin loudspeaker

Posted by in category: energy

The flexible, thin-film device has the potential to make any surface into a low-power, high-quality audio source.

May 16, 2023

Quantum Experiment Shows How Einstein Was Wrong About One Thing

Posted by in categories: particle physics, quantum physics

Albert Einstein wasn’t entirely convinced about quantum mechanics, suggesting our understanding of it was incomplete. In particular, Einstein took issue with entanglement, the notion that a particle could be affected by another particle that wasn’t close by.

Experiments since have shown that quantum entanglement is indeed possible and that two entangled particles can be connected over a distance. Now a new experiment further confirms it, and in a way we haven’t seen before.

In the new experiment, scientists used a 30-meter-long tube cooled to close to absolute zero to run a Bell test: a random measurement on two entangled qubit (quantum bit) particles at the same time.

May 16, 2023

OpenAI unveils ChatGPT plugins, but there’s a catch

Posted by in category: robotics/AI

The new rollout offers around 70 third-party plugins designed to enhance the capabilities of ChatGPT.

May 16, 2023

Hyperion CEO — Company Overview

Posted by in category: futurism

Hydrogen? 🤔


CEO — Angelo Kafantaris discuses the various components of Hyperion and the space age technology in the XP-1. This is just the beginning of what is to come!

May 16, 2023

5 ways AI-driven patch management is driving the future of cybersecurity

Posted by in categories: cybercrime/malcode, robotics/AI

Join top executives in San Francisco on July 11–12, to hear how leaders are integrating and optimizing AI investments for success. Learn More

Patch management approaches that aren’t data-driven are breaches waiting to happen. Attackers are weaponizing years-old CVEs because security teams are waiting until a breach happens before they prioritize patch management.

Cyberattackers’ growing tradecraft now includes greater contextual intelligence about which CVEs are most vulnerable. The result: Manual approaches to patch management — or overloading endpoints with too many agents — leaves attack surfaces unprotected, with exploitable memory conflicts.