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is there any special materials really aid in keeping liquid warm?

i read an article before introducing a kind of gel that can avoid a cup of hot liquid from being cool down by surrounding, anyone know wht's it? and any other special materials or mechanism that can...
13:22 Thu 28th Feb 20081 answer, last by fo3nix 16:56 Thu 28th Feb 2008
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how induction heaters work?

can anybody explain how the induction heater/cooker works? and is that it will switch on only if you are using containers made with particular materials?
13:20 Thu 28th Feb 20081 answer, last by matt1e 17:36 Thu 28th Feb 2008
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Any technology can keep things warm

is there any special technology helps to keep things warm?
13:19 Thu 28th Feb 20082 answers, last by fo3nix 16:59 Thu 28th Feb 2008
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induction heater

can anybody explain how the induction heater/cooker works? and is that it will switch on only if you are using containers made with particular materials?
13:16 Thu 28th Feb 20081 answer, last by heathfield 09:51 Fri 29th Feb 2008
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Questions(Europe transport)

i wanna know how much supplementary and reservation fee i needa pay for thalys train from paris to brussels if i'm holding a eurail pass? Also is it free to take the intercity or regional train within...
13:13 Thu 28th Feb 20081 answer, last by sddsddean 21:10 Thu 28th Feb 2008
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for_u21

Questions in Cleaner Production

andybody know what is end-of-pipe treatment in cleaner production? and also i wanna konw why recylcling lies half in reactive and half in proactive in the environmental sustainable development?
19:27 Tue 11th Dec 2007
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for_u21

Questions in Cleaner Production

Anybody know what is end-of-pipe treatment in cleaner production? and also i wanna know why recycling lies half in reactive and half in proactive in the environmental sustainable development?
19:24 Tue 11th Dec 20071 answer, last by jules77 22:42 Tue 11th Dec 2007
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for_u21

Questions in Cleaner Production

Anybody know what is end-of-pipe treatment in cleaner production? and also i wanna know why recycling lies half in reactive and half in proactive in the environmental sustainable development?
19:23 Tue 11th Dec 2007
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for_u21

How rack and Pinion works?

i would like to know how to calculate the output velocity of the rack (v) if we know the angular velocity driven into the pinion, is it still use the equation Wp/velocity ratio?
20:17 Wed 21st Nov 20071 answer, last by beso 12:50 Thu 22nd Nov 2007
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for_u21

Rack and Pinion question

What is the advantage of using rack and pinion other than other mechanisms?
20:08 Tue 20th Nov 20071 answer, last by Clanad 22:45 Tue 20th Nov 2007
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What are the environmental laws established before and after RoHS?

Please list product related environmental laws established before and after RoHS, thx~~~
21:34 Mon 22nd Oct 20073 answers, last by Whickerman 22:24 Mon 22nd Oct 2007
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Refer to ISO 14001, how would an environmental objective be deployed?

Give an example on how would an environmental objective be deployed? What does SMAER represent? How SMART is presented in the example?
10:14 Wed 17th Oct 2007
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Refer to ISO 14001, How would an environmental objective be deployed?

Give an example on how would an environmental objective be deployed? What does SMAER represent? How SMART is presented in the example? thank you~~
10:13 Wed 17th Oct 2007
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What are the importance of the 3 commitments of ISO 14001?

3 commitments of ISO 14001: 1)Compliance 2)pollution prevention 3)continual improvement what is the importance of each of them?
19:39 Sun 14th Oct 20072 answers, last by Whickerman 19:53 Sun 14th Oct 2007
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What does the ISO 14000 family consist?

What does the ISO 14000 family consist, i got several one, i wanna check whether i miss any thank you~
08:52 Sat 13th Oct 20071 answer, last by buildersmate 10:44 Sat 13th Oct 2007
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What is an ecocide?

Please explain what is an ecocide, thank you~
08:51 Sat 13th Oct 20071 answer, last by Quizmonster 09:13 Sat 13th Oct 2007
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Is there any special perfume or fragrance oil in food smell?

Is there any special perfume or fragrance oil in food smell? In particular egg tart and milk tea( tea with milk)... plz help or post related links. thx
17:58 Sun 19th Nov 20065 answers, last by generationga 20:28 Sun 19th Nov 2006
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Is there any special perfume or fragrance oil in food smell?

Is there any special perfume or fragrance oil in food smell? In particular egg tart and milk tea(tea with milk)... plz help or post related links
17:55 Sun 19th Nov 20061 answer, last by tingirl 14:51 Tue 21st Nov 2006
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what is the favourable material for making car engines?

I would like to ask the following questions: 1)What is the favourable material for making car engines? 2)Why that material is used? 3)Is it suitable to make car engines by silicon nitraide? why? thank...
20:26 Fri 10th Nov 20068 answers, last by Gef 02:08 Sun 12th Nov 2006

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