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a question regarding safety of silica gel

hi, i would like to know how safe(toxicity,cancer causing etc) is it to have a 10gram sachet of selfindicating (oranget...
0 comments posted 20yrs
posted by gamesburn
0 comments posted 20yrs posted by gamesburn

Re: 40,000 V vs. 350 mV

>http://tinyurl.com/e3yb9 Here's a question for scientists only. It has been demonstrated that metal amlagam dental fil...
31 comments posted 20yrs
posted by keith.p.walsh
31 comments posted 20yrs posted by keith.p.walsh

How to improve ductility of brittle materials

i'm wondering now how to improve the ductility of brittle materials, such as glass, ceremics, etc. what kinds of methods...
3 comments posted 20yrs
posted by shyghost
3 comments posted 20yrs posted by shyghost

Copper - High termperature Properties

Hello, I need to know the Youngs Modulus and Yield Stress of Copper at high temperatures; with reference too if possible...
1 comments posted 20yrs
posted by eazap1
1 comments posted 20yrs posted by eazap1

Nickel Iron Bonanza

Greetings- I am a Science Fiction writer and have a couple of chapters (of a work in progress) based on the following p...
5 comments posted 20yrs
posted by mytg8
5 comments posted 20yrs posted by mytg8

copper-graphite connections

Hi, Does anyone have experience of making very low resistance copper-graphite fixed connections ? Is there anything I s...
7 comments posted 20yrs
posted by Steve
7 comments posted 20yrs posted by Steve

New Material Harder Than Diamond

Here's something I read a few days back: http://physicsweb.org/articles/news/9/8/16/1?rss=2.0 It's about a new carbon m...
7 comments posted 20yrs
posted by manofsan
7 comments posted 20yrs posted by manofsan

the order of mixing cement

I am mixing cement of 1 part Portland cement to 3 parts sand. And the old traditional way is to thoroughly mix the sand...
10 comments posted 20yrs
posted by a_plutonium
10 comments posted 20yrs posted by a_plutonium

Testing Carbon steels

Hi all, I have a problem to nut out. Aisi1010 and Aisi1050 have been mixed up and need to be seperated. Is there some s...
8 comments posted 20yrs
posted by cynabar
8 comments posted 20yrs posted by cynabar

International Space Agency

Dear sci.materials This post is to set the record straight, and to correct the great deal of incorrect and extremely ol...
0 comments posted 20yrs
posted by admin
0 comments posted 20yrs posted by admin

Faradaic Activity in Dental Amalgams

It appears that many dentists are only able to discuss the electrical behavior of dental amalgams in terms of "galvanic...
216 comments posted 20yrs
posted by keith.p.walsh
216 comments posted 20yrs posted by keith.p.walsh

Need help for Tm (thulium)doped sample preparation

Hio everybody! I have started my thesis focused on luminescence materials like Y2O3, ZnO and other oxide doped Tm3+, bu...
0 comments posted 20yrs
posted by khuongthanhtuan
0 comments posted 20yrs posted by khuongthanhtuan

Req: Alkyd Resin Info

ear Sir/Madam, our company intends to design and build a Alkyd Resin producing plant. According to this, we look for a...
0 comments posted 20yrs
posted by meisam460
0 comments posted 20yrs posted by meisam460