There are far, far too many incredible inventions to mention here! But as a hearing scientist, I’m always amazed by cochlear implants. These are devices which can be put into the ears of deaf people to help them hear if they want to. Cochlear implants don’t give perfect hearing — it isn’t like popping on a pair of glasses when you’re a bit short-sighted — but they do allow people to hear sound, speech and music!
I think the internet is the best invention – it has really changed the world beyond what could have been imagined before it was invented. If I imagine my life without the internet it would be a LOT more difficult and it would be very different.
I think my favourite is electricity (if that counts as an invention)! I can’t imagine relying on candles, gas lamps, or fireplaces to give us light and heat, and it would be difficult to live without all the other things that use electricity to run too (like phones, televisions, computers, cooking appliances, laundry machines, hospital instruments).