News on China's scientific and technological development.

New design for a small, highly sensitive gravimeter that can operate stably at room temperature​

(a) Schematic of the diamagnetic levitation gravimeter. (b) Schematic of oscillator displacement detection. The laser beam is focused by a lens. The copper wire is placed on the focal point, where displacement sensitivity in the Z direction is maximum. (c) The measured response curve of voltage to displacement in the Z direction of (b). Credit: Physical Review Letters (2024). DOI: 10.1103/PhysRevLett.132.123601


A team of physicists and engineers affiliated with several institutions in China has developed a new kind of small, highly sensitive gravimeter that can operate stably at room temperature. In their project, reported in the journal Physical Review Letters, the group developed a dual magnet strategy that used a laser to measure changes in gravity.

Drone delivery service tested:

A nice picture of the 11-axle XCA4000, which also has some off-road capability:

China's High Energy Photon Source () located in Beijing races to generate its 1st light by end-2024. As China's first, HEPS can generate light 1 trillion times brighter than the sun, marking one of the brightest 4th-generation synchrotron radiation facilities worldwide.

sunnymaxi said:

China's High Energy Photon Source (

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) located in Beijing races to generate its 1st light by end-2024. As China's first, HEPS can generate light 1 trillion times brighter than the sun, marking one of the brightest 4th-generation synchrotron radiation facilities worldwide.

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https://twitter.com/i/web/status/1773271308140241294

https://twitter.com/i/web/status/1773271308140241294

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great!. Has it got anything to do with the effort of China to make EUV lithography machine?

antiterror13 said:

great!. Has it got anything to do with the effort of China to make EUV lithography machine?

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it can be related to Litho as well but this facility is for other purpose just like life science research and energy related..

read the details here ..

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regarding EUV light source.. we have enough information in semiconductor thread.. 3 different Chinese institutes have successfully developed EUV light source..

Ordinary lithium ion battery for implanted electronic device has to be surgically replaced every 5-15 years. The new Sodium-Oxygen battery can last much longer, which uses the oxygen in body fluid as a power source to generate electricity.

The battery uses an alloy of sodium, gallium and tin as its anode. The nanoporous gold catalytic cathode is able to draw in oxygen from body fluids to fuel the necessary electrochemical reactions in the battery.

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Implantable and bio-compatible Na-O2 battery​

• An implantable Na-O2 battery with opened cathode structure has been first developed
• This Na-O2 battery architecture revolutionizes the concept of implantable batteries
• The Na-O2 battery can be easily bent and presents a good electrochemical performance
• The Na-O2 battery devices exhibit excellent bio-compatibility in vivo

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Huawei had a banner year in 2023.

Huawei posts 9.63% rebound in sales for 2023, driven by popularity of Mate 60 series 5G smartphones that defied US sanctions​

• The privately held firm recorded a 9.63 per cent increase in revenue to US$97 billion in 2023, while profits surged 144.5 per cent year on year
• Company executives skipped this year’s annual results press conference, a tradition dating back to 2013

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for the first time, China reconstructed the likeness of an ancient emperor from 1,500 years ago with archaeological science using 1 million gene loci on the bones of Emperor Wu (Yuwen Yong) of the Northern Zhou Dynasty (557–581), an Archaeology team announced on Thursday..



Source - @ChinaScience

Close, but not an exact match.

Okay, this I must admit, I never thought of.

Then again, who would be surprised? That someone would try this.

Are your surprised that you're surprised?

I know I am.

Keda is a maker of ceramic machinery.

Looks like by utilizing digital factory, they reduced order fulfillment time from 45 to 25 days

Work they took 200 employees to do before now just takes 120 employees