Quick Answer: Snow sparkles because its surface is covered with countless ice crystals that act like tiny mirrors and prisms, reflecting and bending…

Quick Answer: Fiber-optic data transmission uses pulses of light to rapidly carry huge amounts of information over thin glass or plastic fibers. It’s…

Quick Answer: Ethylene is a natural gaseous plant hormone that acts like a “ripening signal” for many fruits, triggering color changes, softening, sweetness,…

Quick Answer: Thermocouples are rugged temperature sensors that work by generating a voltage when two different metals meet at different temperatures. They’re inexpensive,…

Quick Answer: Metals glow when they’re heated because their atoms vibrate more intensely, releasing thermal radiation. As the temperature rises, the peak wavelength…