Do you have a smart device or smart assistant on your phone? If you also have a pet dolphin, you might need to keep an eye on your shopping lists. Since some dolphin chatter is inaudible, Flippy may have been ordering tuna without you noticing. Researchers at the SSSLab in China have worked out how to use completely inaudible voice commands to activate smart devices and assistants. The commands are inaudible to humans because they are very high frequency sounds. Humans can hear stuff in the range between 20 Hz to 20 kHz, but we are especially attuned to sounds … More
Imagine you’re 100 years in the future, exploring a deserted landscape with your trusty cat sidekick. Your cat suddenly turns green. What does it mean? Hopefully, you’ll remember the song your grandma taught you as a kid. Your cat is green because you have stumbled across some nuclear waste. Time to scarper, and maybe reward your newly green cat with some fish.