gene-h

5 ms·

1.
Towards Atom-by-Atom Fabrication: Mechanosynthetic Donation and Abstraction(arxiv.org)
2 points by gene-h 3mo ago|0 comments
2.
by gene-h 3mo ago
It'd be nice if they had some pictures of placed nanotubes rather than the generic nanotube spaghetti they show. Maybe make a logo like 'C12' with them to show the pick and place process is versatile.
3.
by gene-h 4mo ago
This is an experimental demonstration of the technology that makes Neal Stephenson's "Diamond Age" possible. They place an individual carbon atom pair(dimer) on silicon. Silicon has the same crystal structure as diamond, so a
4.
Atomically precise mechanosynthesis of carbon structures on hydrogenated Silicon(arxiv.org)
57 points by gene-h 4mo ago|9 comments
5.
by gene-h 11mo ago
This project was cancelled a couple months ago: https://breakingdefense.com/2025/06/darpas-draco-nuclear-pro...
6.
by gene-h 1y ago
There are proposals for the 6G standard to support Integrated Sensing and Communication(ISAC)[0]. So the hardware might natively be able to support gait recognition. The use cases given are UAV detection and localization. It sort of seems l
7.
by gene-h 1y ago
Industrial robots at least are very reliable, MTBF is often upwards of 100,000 hours[0]. Industrial robots are optimized to be as reliable as possible because the longer they last and less often they need to be fixed, the more profitable th
8.
by gene-h 1y ago
Energy out/energy into capsule
9.
by gene-h 1y ago
This will probably need to be updated soon. There are rumors NIF recently achieved a gain of ~4.4 and ~10% fuel burn up. Being able to ignite more fuel is notable in and of itself.
10.
Millihertz 5 Mechanical Computer (2022)(srimech.com)
95 points by gene-h 1y ago|18 comments
11.
by gene-h 1y ago
And why wouldn't it work? Linear slide like mechanisms consisting of a silver surface and single molecule have been demonstrated[0]. The molecule only moved along rows of the silver surface. It was demonstrated to stay in one of these
12.
by gene-h 1y ago
A similar single motor robot hand has been made that uses electrostatic clutches instead of mechanical clutches[O]. [0] https://arxiv.org/abs/2501.08469
13.
by gene-h 1y ago
At some point, making mechanical watches more complicated will require going digital. It is possible to make very small gears with semiconductor processes, however, very small gears wear out fast due to stiction. In order for gears to work
14.
by gene-h 1y ago
I would not consider this a 'robot' because power and control is not on board. It's more of a puppet than a robot. At the very least, the magnets should be included in the size of the robot.
15.
Making the Arithmometer Count(mhs.ox.ac.uk)
11 points by gene-h 1y ago|1 comments
16.
by gene-h 2y ago
What's interesting is the vision language capability they have. Being able to verbally describe tasks and determine if a task was completed means they might be able to do self-play for a massive number of different tasks to improve mot
17.
by gene-h 2y ago
Perovskite solar cells could be and dye sensitized solar cells can be[0]. The better question is why should one make solar cells at home? [0] https://www.instructables.com/How-to-Build-Use-A-Dye-Sensiti...
18.
by gene-h 2y ago
Anything you want and can launch into space. The program goal is being able to grow large structures. The intent seems to be using biology as a means to more efficiently transform launched mass into big structures.
19.
by gene-h 2y ago
It's useful for grid storage. Very large amounts of hydrogen are already stored in salt domes[0]. Current salt domes have volumes in the range of hundreds of cubic kilometers and can support pressures around 50-150 bar, translating int
20.
Dialectic Mechanics [pdf](elib.dlr.de)
1 points by gene-h 2y ago|0 comments
21.
by gene-h 2y ago
You could use it to model a CNC machine, but you'd probably need to make new components. It would also be difficult to model the changing load as the spinning tool plunges into metal, but you could model dynamic deformation and respons
22.
by gene-h 2y ago
It's 4x more efficient at solar to food production than regular plants with the potential to get a 10x improvement.
23.
by gene-h 2y ago
Europa Clipper also used a new approach for designing spacecraft. It's NASA's first major spacecraft designed with Model Based Systems Engineering(MBSE)[0]. Using diagrams in SysML to keep track of power use and interfaces is supp
24.
by gene-h 2y ago
There was a whole field called fluidics that focused on performing operations analogous to those performed with electricity. This[0] gives a good overview of how fluidics worked. One the most commonly used elements of fluidics was the fluid
25.
by gene-h 2y ago
Atomically precise manufacturing, that is tech for building structures atom by atom. This is starting to be done regularly in labs. Machines for making single atom transistors are a commercial product now[0]. Forming covalent bonds at desir
26.
by gene-h 2y ago
What's more important is that they demonstrated making diamond at 1 atm and lower temperatures(1025 C). This is compared to ~50,000 atm and ~1500 °C diamond is conventionally made at. The diamonds they made were very small, but this is
27.
by gene-h 3y ago
The efficiency demonstrated is a joke. There are better ways and more direct ways to extract power from humidity gradients[0]. In a dry environment, the maximum amount of energy extractable per unit water is fairly high, about the energy de
28.
by gene-h 3y ago
The IM-1 Lander was supposed to land using a LIDAR altimeter, but they forgot to remove the safety before launch. They tried to make a last minute software change to use an experimental navigation system from NASA to get altimetry, but this
29.
by gene-h 3y ago
Much of the damage to the power grid can mostly be mitigated by turning off electricity, although this is a difficult thing for power companies and grid operators to do. One issue this article doesn't discuss is the risk to undersea in
30.
by gene-h 3y ago
There has been more interesting work on using transformers for robot motion planning[0]. Getting a robot arm from point a to b without hitting stuff is a very difficult problem, the problem is both high dimensional and continuous. Previous

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