What Is a Control Variable? Definition and Examples

Our Planet on Instagram: "After a stroke left her unable to speak for nearly two decades, a breakthrough brain implant has given this woman her voice back — through AI. The device interprets her neural signals in real time and converts them into speech, allowing her to communicate using a digital avatar powered by machine learning. Instead of relying on muscle movement, the system reads the electrical patterns in her brain that once controlled her voice. AI then reconstructs the sounds she inten

Galaxies on Instagram: "Color TV camera footage (remote-controlled from Houston) of the Apollo 17 LM ascent stage ignition and liftoff on December 14th, 1972. The “rainbow sparkles” at ignition are from bits of Kapton foil and insulation that were blown outwards by the hold bolts and wire cutters exploding and engine ignition; they moved much too fast for the spinning RGB color wheel on the camera to register them in all filters. Credit: NASA & Jason Major"