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Telling nickel silver apart from brass?

X-No-Archive: Yes I have some key blanks made of either brass or nickel silver. I can't tell for sure visually. Is ther...
1 comments posted 19yrs
posted by itsme.ultimate
1 comments posted 19yrs posted by itsme.ultimate

Question about selection of spring.

I am working over a device in which spring is key part. This spring is supposed lift about 70 kg load at 5-10 centimete...
5 comments posted 19yrs
posted by MATREEX
5 comments posted 19yrs posted by MATREEX

heat sink for gas turbine exhaust

Hi, I am looking into the feasibility of using heat-absorbing materials to cool the gasses leaving an engine of a steal...
1 comments posted 19yrs
posted by adam.chapman
1 comments posted 19yrs posted by adam.chapman

free material journals or periodics

Is there any well known , popular periodics or journals in free distribution with advertising that you can recommend me...
0 comments posted 19yrs
posted by nomksonspam
0 comments posted 19yrs posted by nomksonspam

Strength of screw threads

I'm an EE so this is outside my area, but.... While looking at with a friend [his PhD is chemistry, and he writes crypt...
1 comments posted 19yrs
posted by wb8foz
1 comments posted 19yrs posted by wb8foz

Cutting TiO2(110) wafer

Hi! I've got a TiO2(110) wafer for my STM experiment but it seems to exceed the allowed sample size. Now I need to cut...
1 comments posted 19yrs
posted by rok1812
1 comments posted 19yrs posted by rok1812

The variation of contact angles

Hi all, I want to work at this subject in the future.But i couldnt find any documentation or works dor this subject.Do...
2 comments posted 19yrs
posted by janseett
2 comments posted 19yrs posted by janseett

How to sell Indium

I was asked to research a possibility to sell 10kg of Indium. It is 99.x% purity, has some kind of certificate. Anyone c...
3 comments posted 19yrs
posted by paul.jonaitis
3 comments posted 19yrs posted by paul.jonaitis

Fe-Ti alloy thermal equilibrium diagram

Hi, Could you please help me to find the Fe-Ti alloy thermal equilibrium diagram or a website providing free thermal equ...
2 comments posted 19yrs
posted by ethaer
2 comments posted 19yrs posted by ethaer

Density of a porous solid particle

I know the pore volume (in cubic centimeters per gram) and the density of the pure solid (in gram per cubic centimeters)...
3 comments posted 19yrs
posted by porosity
3 comments posted 19yrs posted by porosity

Bandgap of 'white' solids?

Hi, Under 'white visible light' illumination, my understanding is that colour is percieved as the combined effect of ph...
0 comments posted 19yrs
posted by olongdomango
0 comments posted 19yrs posted by olongdomango

Sintered Material

Hello, I'm looking for a sintered metal sheet with a diameter of 120 mm. The thickness must be 1-3mm The material must...
0 comments posted 19yrs
posted by torsten.howe
0 comments posted 19yrs posted by torsten.howe