here is a handy, easy, fast, fun, safe, and cheep way to build a laser:
first- buy all of these;
http://www.radioshack.com/product/i...&cp=2032058.2032236.2032314&parentPage=family
http://www.radioshack.com/product/index.jsp?productId=3070523&cp=2032057.2032182&parentPage=family
http://www.radioshack.com/product/index.jsp?productId=2431383&cp=2032061.2032358&parentPage=family
http://www.radioshack.com/product/index.jsp?productId=2353732&cp=2032060.2062968&parentPage=family
second- take the capacitator from the fluctuater out of the projector and solder it to the resistor on the top side of the fax machine
third-take the projector lense and cut it in half down the north to southeast pole of the multimeter
fourth- take the cutting blade of any lawn mower and bend/weld the edge to the minsemeter to disalign the diode
fith- take apart any camcorder and extract the external housing of the needle-nose head resistor and force it open with a paperclip
finally-install a car battery adapter to the flush compactor from the hose limitor on the sliding diode warehouse inside the computer monitor
fire it up!!! because you have just made a tree cutting big huge laser beam!!!
p.s. good luck ;D