185837 1728 Technology Science & Technology Projects true Tue, 26 May 2009 14:47:46 -0700 /system/videos/1/37/58/18/185837.flv technology, science, projects, dusting, fingerprints, forensics, crime, suspect, capturing, clues How To Dust For Fingerprints http://www.howcast.com/videos/185837-How-To-Dust-For-Fingerprints http://www.howcast.com/videos/185837-How-To-Dust-For-Fingerprints/edit approved 93 1280 720 <object width="425" height="273" classid="clsid:D27CDB6E-AE6D-11cf-96B8-444553540000" id="howcastplayer"><param name="movie" value="http://www.howcast.com/flash/howcast_player.swf?file=185837"></param><param name="allowFullScreen" value="true"></param><param name="allowScriptAccess" value="always"></param><embed src="http://www.howcast.com/flash/howcast_player.swf?file=185837" type="application/x-shockwave-flash" width="425" height="273" allowFullScreen="true" allowScriptAccess="always" ></embed></object> 14 gigafide http://img.howcast.com/system/thumbnails/185837/Picture_1_xxlarge_maintained_aspect.png 7868 false false false 72206 1 23 Step http://img.howcast.com/system/thumbnails/185837/23.jpg Fill balloon halfway with water Fill the balloon halfway with water from the tap. Remove from the faucet and fill the other half with air. Tie it off.

]]> 72207 2 32 Step http://img.howcast.com/system/thumbnails/185837/32.jpg Hold balloon over candle Light a candle. Hold the balloon at the knot end and dangle it above the flame, so the tip of the flame touches it. After 15 to 30 seconds, the smoke from the candle will collect as soot on the balloon’s surface.

]]> 72208 3 44 Step http://img.howcast.com/system/thumbnails/185837/44.jpg Collect the soot from the balloon Using the brush, collect some of the carbon soot from the balloon.

]]> 72209 4 50 Step http://img.howcast.com/system/thumbnails/185837/50.jpg Brush the soot onto the fingerprint Brush the area you want to search for fingerprints, coating it lightly with soot. If you need more soot, hold the balloon over the flame again until you get enough soot to dust with.

]]> 72210 5 59 Tip The smoother the surface, the better the fingerprinting results will be.

]]> 72211 6 64 Step http://img.howcast.com/system/thumbnails/185837/64.jpg Identify a fingerprint Look for the patterns and swirls that identify a fingerprint. The oils in the print will make more of the carbon stick than the areas directly around it.

]]> 72212 7 74 Step http://img.howcast.com/system/thumbnails/185837/74.jpg Collect the fingerprint Once you’ve located a print and it’s covered in soot, place a piece of clear tape over it. When you remove the tape, the fingerprint will be stuck to it!

]]> 72213 8 83 Fact About 40,000 fingerprints are added to the FBI’s database every day.

]]> 1728 95380 How To Make an LED Floatie AssignmentGuide 8745 Sun, 07 Dec 2008 09:15:34 -0800 22 Lman ]]> 85 http://media.howcast.com/system/videos/5/80/53/09/95380.flv instructables, technology, science, making, floats, floater, lighting, illuminated, balloons, lights Technology Science & Technology Projects 7 http://img.howcast.com/system/thumbnails/95380/40_xxlarge_maintained_aspect.jpg http://www.howcast.com/videos/95380-How-To-Make-an-LED-Floatie 1728 171739 How To Solder AssignmentGuide 1872 Thu, 16 Apr 2009 10:17:09 -0700 4 KeithMcKellar ]]> 183 http://media.howcast.com/system/videos/1/39/17/17/171739.flv technology, science, projects, Soldering, electronics, wiring, repairing, metals, iron Technology Science & Technology Projects 1 http://img.howcast.com/system/thumbnails/171739/Picture_1_xxlarge_maintained_aspect.png http://www.howcast.com/videos/171739-How-To-Solder 1728 254449 How To Grow a Crystal Garden AssignmentGuide 397 Mon, 16 Nov 2009 14:15:58 -0800 1 Saysa ]]> 82 http://media.howcast.com/system/videos/2/67/13/28/281367.flv growing,crytal,garden,maintaining,keeping,science,projects Technology Science & Technology Projects 0 http://img.howcast.com/system/thumbnails/254449/GrowCrystalGarden_xxlarge_maintained_aspect.png http://www.howcast.com/videos/254449-How-To-Grow-a-Crystal-Garden 1470 259465 How To Enable Half-Star Ratings in iTunes on a Mac AssignmentGuide 172 Thu, 15 Oct 2009 12:04:53 -0700 0 stevenkittinger ]]> 40 http://media.howcast.com/system/videos/6/39/47/26/264739.flv iTunes,Mac,computer,music,ratings Technology 0 http://img.howcast.com/system/thumbnails/259465/halfitunes_xxlarge_maintained_aspect.png http://www.howcast.com/videos/259465-How-To-Enable-HalfStar-Ratings-in-iTunes-on-a-Mac 1473 206962 How To Install a Nintendo Wii AssignmentGuide 1140 Tue, 14 Jul 2009 13:05:01 -0700 3 Truedoogie ]]> 90 http://media.howcast.com/system/videos/0/62/69/20/206962.flv nintendo, wii, install, installation, videogames, system, Console, 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Computer Hardware Data Storage Devices 2 http://img.howcast.com/system/thumbnails/117134/Picture_5_xxlarge_maintained_aspect.png http://www.howcast.com/videos/117134-How-To-Make-a-PinkEraser-Casing-For-Your-USB-Drive 1488 54257 How To Choose a New Computer AssignmentGuide 28529 Tue, 21 Oct 2008 08:15:34 -0700 35 QuintinBarry ]]> 175 http://media.howcast.com/system/videos/0/57/42/05/54257.flv DIY, Instructional, tutorial, Do It Yourself, Tips, Essential Skills, Learn to, technology, tech, computer Technology Computer Hardware Desktop Computers 8 http://img.howcast.com/system/thumbnails/54257/Picture_3_xxlarge_maintained_aspect.png http://www.howcast.com/videos/54257-How-To-Choose-a-New-Computer 1492 127178 How To Refill an Ink Cartridge AssignmentGuide 16148 Tue, 27 Jan 2009 11:04:01 -0800 6 heroicarts ]]> 93 http://media.howcast.com/system/videos/2/78/71/12/127178.flv DIY, Instructional, tutorial, Do It Yourself, Tips, Essential Skills, Learn to, technology, tech, electronics Technology Computer Hardware Printers 0 http://img.howcast.com/system/thumbnails/127178/Picture_6_xxlarge_maintained_aspect.png http://www.howcast.com/videos/127178-How-To-Refill-an-Ink-Cartridge 1492 258308 How To Set Your Default Printer on a PC AssignmentGuide 218 Wed, 21 Oct 2009 12:33:13 -0700 0 daisakug ]]> 71 http://media.howcast.com/system/videos/1/64/74/26/267464.flv PC,printer,default setup.computer,print,convenient Technology Computer Hardware Printers 0 http://img.howcast.com/system/thumbnails/258308/SetDefaultPrinteronPC_xxlarge_maintained_aspect.png http://www.howcast.com/videos/258308-How-To-Set-Your-Default-Printer-on-a-PC 1500 218395 How To Restore Lost Browser Favorites and Bookmarks AssignmentGuide 1019 Fri, 14 Aug 2009 07:32:58 -0700 2 NelsonN ]]> 106 http://media.howcast.com/system/videos/1/12/66/22/226612.flv bookmarks, browser, restore, find, lost, technology, internet, world wide web, browsers Technology Internet & World Wide Web Web Browsers 0 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