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26 essential equations
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5) Full periodic table with atomic number reference in each period (row)
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Super Safe Green Laser Pointer (Class 2) laser 26 essential equationsThe Super Safe Green Laser Pointer is the ultimate in laser safety at <1 mW (Class 2) low power levels emitting 532 nm light. These kid safe laser pointers remain more visible than a red laser pointer of regular power output and are perfect for science and physics demonstrations. All of our green laser pointers are fitted with an infrared (IR) filter to catch any hazardous invisible IR light. Guaranteed to be FDA compliant, tested for safe power
US$ 32.00
US$ 32.00
US$ 169.00