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

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

#101

Post by walrus01 »

Godel_unicode wrote: post #58
walrus01 wrote: post #47

Earlier quoted context omitted.

In any major city really the solution is to never lock anything up in public that is worth more than $400 or so. I have two road bikes, the insurance replacement value of each would probably be $3000, and I wouldn't even dream of buying a lock. I literally don't even know where my lock is. The last time I saw a lock was when I put it in a box of stuff on a shelf in my garage 10+ years ago. If you have a nice road bik…

We definitely mind, we're just too polite to tell you. Knowing your friend spends thousands (plural) on their bike makes you feel bad about not wanting their "clean" tires, which definitely didn't roll through dog turds and cat pee on the way there, on your floors.

To clarify I did not mean taking a bike into peoples' houses, but commercial establishments that already see a high volume of foot traffic. The tread pattern and grip on any shoes collects far more feces and other dirt from sidewalks than a smooth treadless 700x23 tire.

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

#102

Post by [deleted] »

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.…

[deleted]

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

#103

Post by floatingatoll »

sudosysgen wrote: post #27
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.

This is an absolutely amazing innovation, but bike thieves have already progressed to using powder-actuated pistons in order to break the internal mechanism of a lock. Much faster and easier than cutting anything.

I hope this thread results in an FP post about this, because I am super curious now and there's only tidbits here ("engine pistons?" "what's a ramset?").

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

#104

Post by walrus01 »

brian_cunnie wrote: post #69
walrus01 wrote: post #47

Earlier quoted context omitted.

In any major city really the solution is to never lock anything up in public that is worth more than $400 or so. I have two road bikes, the insurance replacement value of each would probably be $3000, and I wouldn't even dream of buying a lock. I literally don't even know where my lock is. The last time I saw a lock was when I put it in a box of stuff on a shelf in my garage 10+ years ago. If you have a nice road bik…

I've managed to keep my bike locked up outside OVERNIGHT in San Francisco (Washington & Polk St.) for a year now. How I did it? The short version: one very good lock (Viro Euromonolith + Peewag security chain, $175), a second good lock (kryptonite, $90), and an okay lock (Abus, to keep them from stealing the basket, $60). I've also had 3 bikes stolen, the rear wheel stolen, the basket stolen, the front brake stolen,…

If I may ask, what is the specification/purchase value of the bike? Is it cheap enough to not look like a juicy target?

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

#105

Post by tzs »

sturmeh wrote: post #73
unstatusthequo wrote: post #3

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

If it has a keyhole it can be picked, a lock made of diamond wouldn't resist.

> If it has a keyhole it can be picked

What if you can't get your picks into the keyhole?

I saw a lock that had a tubular key, and an airlock-like mechanism between the place the actual keyhole and the opening for you to insert the key. You would insert the key, and then activate the airlock-like mechanism which would transport the key to the keyhole.

There was then a mechanism to rotate the thing that was holding the key so as to unlock the lock.

The actual keyhole in this lock was never exposed to the outside.

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

#106

Post by catalogia »

hinkley wrote: post #20
waffle_ss wrote: post #10

> ... hardness may not be a fundamental property of a material but rather a composite one including yield strength, work hardening, true tensile strength, modulus of elasticity, and micro properties such as strength of atomic bonds. Now that is pretty interesting. It seems they tuned the material to resist the angle grinder, drill and water jet but it would be interesting to see its ballistic resistance.

I'm not sure why anyone would want cut resistant shoe soles, but I know lots and lots of people who want puncture resistant shoe soles. Isn't that a similar process to ballistics? I note that they didn't really cover that territory, and wonder if that was lack of facilities or avoiding the tough questions.

> Isn't [puncture] a similar process to ballistics?

Maybe in a sense, but I think not really. Bullet-proof vests aren't necessarily (usually?) stab proof. (And vice-versa of course.)

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

#107

Post by TwoBit »

8note wrote: post #93
rudolph9 wrote: post #70

Earlier quoted context omitted.

I want a bike lock made of this stuff

I'm sure lockpickinglawyer will still open it just fine.

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.

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

#108

Post by richardw »

[deleted] wrote: post #85
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.…

[deleted]

I’d say throw it up to the appropriate height. You don’t need exactly 10m and it’ll replicate the drop event perfectly.

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

#109

Post by julianz »

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.…

I have a 5-6m high grapefruit tree, and they... do not survive the fall. This material sounds cool but I hope it's better than my grapefruit.

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

#110

Post by sudosysgen »

TwoBit wrote: post #107
8note wrote: post #93

Earlier quoted context omitted.

I'm sure lockpickinglawyer will still open it just fine.

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.
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