Even with that twisty on/off knob at the end of the barrel, little tykes apparently still have no trouble using spray bottles filled with poisonous cleaning products. So to make them safer for households with inquisitive kids, researchers at the Nationwide Children’s Hospital and Ohio State University have created a new spray bottle design with a kid-proof two-stage trigger. More »
If you want to scientifically impress your friends tomorrow (or look like a hoity toity smartypants), you can tell them what the color of fireworks really mean. See that explosion of electric white? That’s white-hot metal flakes. Gorgeous red array? Strontium Carbonate. It’s all about the chemicals, baby. More »
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