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

scitechdaily.com

111–120 of 249 posts

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

#112
post #42
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.

Isn't a plasma cutter actually melting an area out of a material and not actually cutting it?

It does both!

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

#116
post #112
post #42

Earlier quoted context omitted.

Isn't a plasma cutter actually melting an area out of a material and not actually cutting it?

It does both!

My point is that if you look at that definition of "cut", it's not just rendering one item into two pieces, other wise tearing or cracking something would be cutting it, and those aren't cutting either.

I doubt this material is impervious to shear force, or being lowered in temperature until it's brittle and cracked. But those aren't methods of cutting.

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

#118

Earlier quoted context omitted.

The new Ramset guns are surprisingly quiet. Certainly, the police won't be called, and there's not much of a risk to the thief. This is because unlike a gun, there is no need for the gases to release to the outside openly. Therefore, there is much, much less noise, and it doesn't sound like a gun at all.

I wonder if the battery-powered propellant-free Hilti fastener shooter would work, those things are extremely quiet!

It's my understanding that the actual propulsion of a nail is no more powerful than a powder actuated tool, which use cartridges similar in power to the very small .22LR

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

#119

> 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?

There seems to by multiple different types of material incorporated, and I'm not sure that would work in a blade, where it's really the tip/edge that comes into contact.

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

#120
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.

Seconded. This could have been written by Churchill.
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