how to make a laser room. what kind of materials and paints to be used?
931718
You don't need to do anything to use a laser in a room. \n\nLasers are not ionising radiation and need no special treatment.\n\nBut you may need to do things to make the room suitable for your particular laser application. For instance, it needs to be vibration free for holography.
90862
Many Many years ago I did one for a science project. I used a round box /painted. Lined with plastic wrap. I them coated the bottom of the box with hair gel.  then i made the nucleus out of a nerf ball I cut into kind of a lima bean shape.  Little braided pieces of yarn for those mitochondrion.  etc.  Whatever I could find around the house that looked like something inside the cell.   My science teacher liked the hair gel the best (it was the cytoplasm or whatever you call it)
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put the counter closer cos alpha raysonly travel a short distance...maybe that will work?... \n\nor get something that will alter with radiation... i think there a material that changes colour when hit with radiation....\n\nOOOOOOOOOrr... get something that emits a longer range radiation ray when the alpha partiles hit it...that way u can get a good approx of the count
515776
usually metals are used to color the compounds. Look at glass blowing webites its similar in the construction. There are also salts that can be used.
943816
i want to make a system that gets mounter to the passenger front bumber of my car, so when im stuck in traffic and some _hole feel he deserves to drive in the emergency lane, the laser will burst a hole in his tire, and give him a reason to be in the emergency lane.  Some issues with this system is the timing of when to fire the laser, how much power the laser would be.  You dont want to accidentally fire at the wrong thing, so these issues must be addressed first.  I think thats pretty innovative.\n\nwhilst working on my M.E. senior design project, my sponsor (an artist) wanted to make a dynamic hologram depicting a full COLOR rainbow..  Yeah, I know...  It made for great jokes the entire year.
632762
There are various sites that explain how to build a paper blimp, just scale them up, as far as material goes you need an airtight flexible material that isnt subject to uv attack, mylar is the favorite.
310889
get some batteries, get some wires, and a very small lightbulb and a socket. So it should look like this:\nBattery(+) ... wire ... paperclip ... lightbulb ... wire ... (-)Battery
1018556
To make the paste: \n1/2 cup all-purpose flour \n2 cups cold water \n2 cups boiling water \n3 tbsp. sugar \n\nMix together flour and cold water in a bowl. \nAdd this mixture to the boiling water and allow it to return to a boil. \nRemove from heat and stir in the sugar. \nAs the mixture cools it will thicken as it does. \nYou can also just make a quicky paste by putting flour in a bowl and adding water until you have kind of a soupy paste. \nIf you're planning to make something you want to last for years and years, be aware that flour paste can get moldy, especially in humid environments. \nYou might want to try using powdered wall paper adhesive (non-pourous) mixed with water. \nIt comes in milk carton type containers and you can find it anywhere wallpaper is sold. \nBe sure to cover your work area with lots of newspaper or wax paper - papier mache can get very messy! \n\n\n\n\nHere is another way to make it and the part about the painting\n\nGetting started \n\nPapier mache is really easy to do, and there are very few requirements. \n\nYou will need... \n\n- Paper (newsprint is ideal)\n- Adhesive\n- Paintbrush\n- Plastic table covering\n- Paints\n- Patience!\n\nIt is advisable to prepare everything before starting. Firstly, tear the newspaper into strips about an inch wide by 4 inches long. This is only approximate. Tear the paper with the grain.\n\nMake your adhesive. There are many different recipes but below you will find the most common.\n\nPapier mache recipes for adhesive \n\nNote: all adhesives can be used with both layering and pulp methods of papier mache.\n\n1 - Flour and water glue:\n\nTo make a flour and water glue follow these instructions:\n\nBoil 5 cups of water in a saucepan.\n\nIn a bowl, mix 1/4 cup of sieved flour with a cup of cold water. Mix to a smooth consistency (a bit like making custard). When completely free of lumps, add the mixture to the water in the saucepan. Gently boil, stirring constantly for two or three minutes until the mixture thickens.\n\nAllow to cool before using.\n\nThis will make a runny glue. If you prefer a very thick glue (or if you are in a hurry for it to dry) use this recipe instead:\n\nThick flour and water glue:\n\nUse 1 whole cup of flour to three cups of water. Make using the same method as above.\n\n2 - Wallpaper paste glue:\n\nMake up a bowl according to the manufacturer’s instructions. Use a little less water than recommended if preferred. Keep in an airtight container. It will keep for several days in a fridge or a cool place. Wallpaper paste has the advantage of containing a fungicide to prevent mould. \n\nNote: It is not a good idea to let children use wallpaper paste in case they put their fingers in their mouths.\n\n3 - White (pva[?]) glue\n\nSlightly water down the glue in a bowl and use straight away.\n\nWhen you have decided which glue to use, the next thing to do is to decide what to make. To start is it advisable to use something to mould on.\n\n\nPainting papier mache \n\nVirtually any paint can be used to paint your papier mache artwork. The most popular paint is water based acrylic. It is easy and clean to use, not too expensive and comes in a large variety of colours. It is also quick drying.\n\nPoster paints can be used but you have to be careful not to use a water based varnish on them or the colours will smudge. \n\nYou can use up old gloss or enamel paints that you have lying around. The important thing to remember is that whatever paint you use, you must seal your work first. A household emulsion[?] paint is ideal. A couple of coats should do it.
338253
To get a good start, try www.howstuffworks.com.\nLook in the back of a textbook to see where the editors got their information.\nFind out which companies develop/research chemical lasers then look at their websites.
175487
just funky metal\ntry painting the inside with clear nail polish
716415
no styrofoam??? aww that ruins some of the fun! i love crafty projects tho. okay you can use bakeable clay. it comes in a variety of colors and can be molded into many shapes. i would suggest working from the inside out and making it into a circle with a pie shaped cutout in it so you can see inside. basically you would make the clay figure and then bake it. you can spray it with a glossy finish and tadaa! oh, and to hang it from the ceiling? i guess you would need to screw in a metal hook beforehand. good luck!!
928332
Okay..I'd go with the animal cell. Usually easier.\n\nGet something round that you can glue things to. I bought myself a Styrofoam ball and cut it in half. This is your cell membrane.\n\nER - you know those fuzzy things with a wire inside that you can bend in any shape? Those are good.\n\nRibosomes - Just dot in black dots. -shrugs-\n\nCytoplasm - Colour in the inside of the Styrofoam.\n\nNucleus - Cotton ball\n\nGolgi Apparatus - That candy. Forget what it's called. It's like long and thin and got sugar on it. Really sour. Anyway..fold it over a couple of times.\n\nMitochondia - Raisins.\n\nIf you want to use the above for a plant just put green construction paper around the ball, in a square obviously.\n--\n\nAnother way to make a plant or cell is to use a bowl and put jello in it and then stick all the materials inside the jello. If you do it just right, it'll come out AMAZING. Only thing is it melts in the classroom and if you don't do it right, it looks unbelievably bad. If you want to take a risk and have a bunch of time, try this.
302975
In order to get a lasing effect, you need to generate a population inversion.  Most orginary light sources (except LED's) would not be good sources of stimulated emission, but could be used to pump another material that could achieve population inversion.  This material would be called the gain medium.\n\nAlmost any transparent-ish material could possibly be made to lase (provide stimulated emission) if pumped hard enough.  I've heard of people making jello lasers and vodka lasers, for example.  These materials require a huge amount of pump (input) light and would not produce much stimulated emission.  That is why we don't use them as laser materials.  Common laser materials include CO2, Helium-Neon, Ruby, Ti:Sapphire, Nd:YAG to name a few.
486418
I'd simply use a table, however if you want to get very detailed, you could use the Word Drawing tools to do this same thing
626110
It is important that the infants have room to crawl so make sure you have a large space somewhere to allow them to do this. The thing to remember when thinking about decorating a room for this age group is to make it interesting. Not just interesting to the eye, but also to touch. Use textured fabrics/throws over couches/chairs. You can even make a throw rug for the floor by sewing different materials together like a patchwork so that when the children lie on it they can explore the different feels.\nYou can also hang things from the ceiling. You can get nice mosquito nets that are supposed to hang over beds and hang it either in the corner like a tent or attached to four corners of the room like a canopy.\nIt's also nice to hang photos of the children who attend the daycare. You can put it on a poster on the wall or you can make little frames like flowers or clouds, put the photos inside and hang them from the ceiling. Write their name next to their photo to help adults ie parents/casual staff to know who is who, and also promote name recognition at this young age.\nYou can also hang mobiles and shiny things around to catch the light and provide something to look at.\nYou can also make really simple craft ideas that you can hang on the walls. Photocopy some outlines for animals and the children can collage on them. They can glue cotton buds on bunny rabbits, or yellow crepe paper on chickens. You could make an aquarium by collaging fish and hanging them from the ceiling with some blue and green streamers hanging down.\nOh man, so many ideas! If you want more, email me and I'll give you more! I think I've written enough for now!
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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.
620304
If you are making a model this might be useful for you:\nUse cardboard to create a ocean with ups and downs. Cover it with dark blue oil paint and some white color for the foam. You can use transparent plastic sheets to cover this model to get a glossy effect. Try not to put the sheet very tight. Stick it loosly so that it creates an effect like waves.\n\nIf you want to make the whole classroom ocean-like, then make it slightly dark and run a cassette with the sound of the waves.