I need an idea for insulating a heating coil  for a science progect i am working on?
142989
I am having a hard time picturing the gaps you are trying to fill, so I'm not sure if my ideas will be helpful.  Perhaps you could try ceramic as an insulator.  It also depends on how long the surface will be exposed to the high temperatures.  If its not too long, perhaps you could use wood that has been soaked overnight in water.\nThe aluminum isn't a bad idea, but perhaps you need thicker aluminum.  Like maybe cut open a few soda cans and flaten the result into a crude sheet of aluminum.  Maybe two or three layers worth would do the trick.\nMaybe some gravel or stones?\nWell, those are just some ideas.  Not sure if any of them will work, but maybe that gives you some things to explore.
562654
Okay, I'll try this one -\n\nRun this experiment twice (or more times), each time with a piece of metal having different density.  The metal piece should be of adequate size (a sewing needle isn't going to do it), it needs to be big enough to significantly affect the temperature of the water.  You will need to know the mass of the metal (i.e., weigh it) and have a thermometer capable of reading from room temperature up through boiling or so.  Please note this is not going to give you a highly accurate answer, but can give you a ballpark idea (I'm guessing you're probably not doing this in a 500 million dollar lab).\n\nThe procedure:\n\n1)  Measure and record room temperature as T1.\n\n2)  Weigh the metal, call it M1.\n\n3)  Bring a known quantity of water (weigh it, or measure it and convert to weight, call it M2) to a temperature just short of boiling (say 180F to 200F, use the same temperature for each run of this experiment).  Record the temperature as T2, and remove the heat source (take it off the burner, etc.).\n\n4)  Drop in a metal piece at room temperature.  Allow a couple of minutes for heat to exchange.  Make sure you use \nthe same amount of time for each run of this experiment.\n\n5)  Measure and record the new temperature of the water as T3.\n\n6)  Repeat with your other metal samples.\n\nYou can now estimate the specific heat capacity for each metal.  It will not be super-accurate (heat escapes your system, and temperatures won't have completely equalized), but should give you some idea.  Just assume all temperatures did equalize and that no heat escaped for calculational purposes.\n\nSince (you are assuming) the heat which left the water went into the metal, then the product of mass, specific heat capacity, and temperature change should be the same for both the metal and the water (but in opposite directions).\n\nThis means that:\n\n(M1)(c1)(T3-T1) = (M2)(cw)(T2-T3)\n\nwhere c1 is the specific heat capacity of the metal, and cw is the specific heat capacity of water (look it up on Google to get the units you need).\n\nSolving this, you get:\n\n......(M2)(cw)(T2-T3)\nc1 = -----------------\n........(M1)(T3-T1)\n\n(sorry about the dots, I'm trying to keep everything aligned)\n\nRepeat the calculations for each of the metals.\n\nYou will need to calculate (or look up) the densities of each of the metals.  Then, graph density vs. the specific heat capacities you calculated, and see if your hypothesis is true.\n\nHave fun!
527048
Cut a hole and mount a small enclosure cooler (alcohol vapor)\n\nIf cutting a hole is not an option then fabricate a heat sink and have the cooler blow on the heat sink.\n\nuse a simple house type thermostat for temperature control.
1514
you must use insulated wire or you will effectivly just short out your power source.  most modern electro-magnets use wire that is insulated with a thin coating of a special varnish.  this allows more winding in a given space.  varnish insulated wire is available from nearly any electronics store or catalog or from any business that rewinds electric motors
800088
any good diy book will do or perhaps links on the internet.\n\nin the uk its all about getting a phase neutral and earth around each point.\nso for the sockets grab a reel of 2.5mm 2core and earth (so called because the earth doesnt have an extra layer of insultation) and take it round to each socket in a ring. usually fuse at 32A with a circuit breaker.\nfor an immersion heater fuse at 16A and take a single 2.5mm 2c and earth cable.\n\n(This starts getting a bit boring, go and buy a book)
1057804
try this\n\nhttp://en.wikipedia.org/wiki/Category:Laboratory_equipment
485319
A classic, but great visual experiment is sucking a hard boiled egg into an erlenmyer flask. It is done by using the principles of the kinetic theory of matter.\nAnother cool project might be doing something with dry ice. Find a place that you can get dry ice and do fun stuff with it, like create smoke, put bubble solution in water and then drop in dry ice to make bubbles that, when you pop, let out white smoke.\n\nAnother idea might be to do some cool colorful reactions. Make some dye molecules or something.\n\nHope one of these ideas works for you.
318461
Depends on what you need.  I work for a manufacturer of heat transfers.  Tell me what you need and maybe I can help you out.
545704
Well, get out your heat transfer text book and start calculating. You should have all the info you should need.
182862
First, weigh the liquid or solid. Then measure the temperature and record both values. Now, you need to set up a current. You need ampermeter and voltmeter in the current.(Make sure the current is not shorting, i.e. touching the ground.) Then run the current through the solid or liquid and measure the temperature after you are done. Calculate the electrical energy that you gave to the liquid or solid. \n\nFind heat capacity: Energy / change in temperature.\n\nThen find specific heat capacity: heat capacity / mass.\n\nIf you can heat it up, that way easier than an electrical method. If you have to use an electrical method, you need a lot of calculations, measurements, etc.\n\nGood luck!!!
801436
Use specific heat capacities and latent heats of these materials along with your head to get water at 0C
889690
You might want to consider using a double wall, with air in between the inner and outer wall. If I remember correctly, air is a very poor heat conductor. Of course, like someone suggested, vacuum would be better, but that's a bit of a stretch. Air would probably work almost as good. The walls should be made out of thermo-insulants (ebonite, I believe)  and/or high heat capacity materials. Covering the outside of the box in aluminium foil would help, if the heat was generated by a source of light (like the sun), but would useless if the heat came from somehwere else. Likewise, painting the box in black would help the water inside stay warm. Covering the inside of the box  with aluminium is as useless as having knees on a fish. Unless you decide you want a lightbulb in the box, for whatever purpose, I'd say it's a waste of time and materials.
957197
put a heating pad on it, or use icy hot.
794120
you could take a straw and heat to just before the melting point where it starts to get soft. you could also use a small gauge (meaning the wire is thick) and bend that. Then attach the tube worm to that so it looks like some of it is sticking out.
867761
uncles a chemist, melt it HELLA HOT, ones more dense than other so if its in a tube one will go to the top and one will go to the bottem, then go for it. good luck\nemail me for problems hjrboy7896@hotmail.com
215978
Look up Tesla Coils on the internet, but be VERY careful with these devices. They are high voltage but a cool science fair project.
826242
rubbing 2 things together to create heat.\nRub yor hands together really fast and see what happens.