Proteus Technology: New Material Is Strong, Light and Non-Cuttable • Hacker News Board

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#121

Post by hyperion2010 » Tue, Jul 21, 2020, 4:48 AM UTC

ryan_j_naughton wrote: post #99

Jedd wrote: post #44

> The freefall of grapefruit from 10 m does not damage the pulp[1] because pomelo peel consists of vascular bundles and an open-pored cellular structure with the struts made of parenchymatic cells. I have a Marsh grapefruit tree, fruiting now (southern hemisphere) as it happens, and I note that it produces particularly pithy progeny. (Ignoring for the moment that Pomelo is one of the parents of the modern grapefruit.…

> produces particularly pithy progeny > fantastically fastidious on fruit quality Great alliterations. Great writing all around. This just made my night.

Don't miss proPagate the plant!

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#122

Post by UnbugMe » Tue, Jul 21, 2020, 4:57 AM UTC

sudosysgen wrote: post #110

TwoBit wrote: post #107

Earlier quoted context omitted.

Yeah but 99% of thieves can't do that. If they could then they'd likely have a real job. Lots of locks are invulnerable to the picking, especially serious digital ones.

They just use a Ramset gun. Thieves are generally quite smart. The dumb ones tend to end up in prison, or worse.

I don't think you have a clue about intelligence based off that retard comment.

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#123

Post by [deleted] » Tue, Jul 21, 2020, 5:06 AM UTC

tsomctl wrote: post #16

How about a plasma cutter? I know a plasma cutter will cut through normal silica. (I cut through some steel plate laying right on top of large gravel.) Silicon dioxides melting point is 1700 C, and aluminum oxide is 2100 C, a little higher.

[deleted]

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#124

Post by praptak » Tue, Jul 21, 2020, 5:09 AM UTC

gruez wrote: post #97

sigmaprimus wrote: post #64

Neat idea, very similar to concept of running a chain through a pipe to prevent cutting, but in three dimensions. I do wonder what effect freezing would have on it though.

>Neat idea, very similar to concept of running a chain through a pipe to prevent cutting People do that? Also, how does it work?

The grates that protect prison windows are often made of pipes with a bunch of loose rods inside. Cutting through the pipe itself is relatively easy, but the rods inside are unfastened, so they tend to roll under the cutting tools.

Edit: The principle is actually somewhat similar to the anti-drill protection on door locks - a small disc in front of the lock with a slit that the key goes through. The disc makes it hard to drill through the lock, because it spins together with the drill.

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#125

Post by cl3misch » Tue, Jul 21, 2020, 5:15 AM UTC

I can't see the improvement of this vs. walls of high end personal safes. They have used mixed material walls for ages, made from some hard small component (e.g. ceramic) embedded in a more flexible mass (hard rubber).

Being accepted in SciRep this material has to have some merit but I am unable to see it.

Is the structure even scalable to smaller objects? The other comments talking about bike looks did not read the paper it seems.

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#126

Post by adrianmonk » Tue, Jul 21, 2020, 5:15 AM UTC

teruakohatu wrote: post #21

This could be a revolution in bike locks. Right now compact battery powered cutting tools can remove just about any bike lock quickly and can easily be concealed.

Forget locks... just make my tires out of this.

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#127

Post by stubish » Tue, Jul 21, 2020, 5:17 AM UTC

steffan wrote: post #11

My first thought was "New bike lock material" My second was: "New non-cuttable bike lock defeated by ______" {freezing, shock, heat, _ }

acid to disolve the aluminium in the structure

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#128

Post by waste_monk » Tue, Jul 21, 2020, 5:19 AM UTC

beenBoutIT wrote: post #5

unstatusthequo wrote: post #3

Waiting for this to exist in an Abus lock so my storage unit can stop being broken into my tweakers.

It only protects you from tweakers armed with cutters. Industrious tweakers with better tools at their disposal might be able to crush it or melt it.

>industrious tweakers with better tools

They're probably breaking in hoping to steal tools to sell. If they had decent tools they would have already sold them. It's not impossible but well-equipped tweakers are far less likely than other kinds of thief.

On the other hand they're batshit crazy enough to try other means, why bother trying to break into a storage unit when you can chain the door handle to your (also stolen) car and rip the whole unit door off.

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#129

Post by almost_usual » Tue, Jul 21, 2020, 5:19 AM UTC

abiogenesis wrote: post #57

> The blade is gradually eroded, and eventually rendered ineffective as the force and energy of the disc or the drill is turned back on itself, and it is weakened and destroyed by its own attack. What about an angle grinder disc made of this new material?

They don’t mention what kind of blade was used in the experiment? Interested if it was a diamond blade or a conventional blade.

When pausing the video it looks like a conventional cut off wheel.

Re: Proteus Technology: New Material Is Strong, Light and Non-Cuttable

#130

Post by chongli » Tue, Jul 21, 2020, 5:20 AM UTC

sudosysgen wrote: post #110

TwoBit wrote: post #107

Earlier quoted context omitted.

Yeah but 99% of thieves can't do that. If they could then they'd likely have a real job. Lots of locks are invulnerable to the picking, especially serious digital ones.

They just use a Ramset gun. Thieves are generally quite smart. The dumb ones tend to end up in prison, or worse.

I’ve watched a bunch of lockpickinglawyer videos and there are locks he cannot pick at all, and locks which take a hell of a lot of punishment from a Ramset gun. It’s not out of the realm of possibility that you could build a bike lock which would effectively deter thieves. After all, it doesn’t have to be indestructible, it just has to convince the thief that your bike is not worth the time and risk of attracting attention.