Les haut-parleurs

Did you know that the ancestor of the solar panel is the window? It will take centuries before the solar panel as we know it today is invented. Technology has really evolved!

Did you know that recycling has been around since the Middle Ages? Back then, ragpickers would go around the houses to collect old materials and sell them. Wow, technology has really evolved!

Did you know that the QR code was inspired by a board game? When it was created, it was only used in factories. Now it's everywhere, even used to scan restaurant menus. Technology has really evolved!

Did you know that the abacus was the ancestor of the computer and that the first computer was so big that it filled a room? Now we have laptops and cell phones that we can take everywhere. Technology has really evolved!

Did you know that the first screens were very thick? They were several tens of centimeters long. Now, we have very small screens that fit in our hands, like the ones on our cell phones. Technology has really evolved!

Did you know that Russia and Bulgaria celebrate Radio Day every year on May 7? This is because the first radio broadcasting took place on May 7. Now there are hundreds of radio stations. Technology has really evolved!

Did you know that the first big video game competition had a car as a prize? It took place in 1994. Now there are many competitions with thousands of participants. Technology has really evolved!

Did you know that before music was streamed, it took up a lot of space? Between vinyl records, audio cassettes and then compact discs, music was saved on a lot of media that shrank over time. Technology has really evolved a lot!

Did you know that wind energy has been used for thousands of years? Our ancestors first used it for their boats, then later for windmills. Today, wind turbines produce energy for cities. Technology has really evolved!

Did you know that the first bicycle had no pedals? It would be many years before the pedal bike, and then the electric bike, made their appearance. Technology has really evolved!

Did you know that before the invention of light bulbs, our ancestors used candles and oil lamps. Technology has really evolved!

Did you know that before emojis, we used emoticons that we wrote using the characters on the keyboard? Technology has really evolved!

Did you know that the first tool was a simple sharp stone called a flint? It was much later that the first metal and then electric tools appeared. Technology has really evolved!

Did you know that the first wheel was made of a wooden disc? It was very heavy. It took thousands of years before the tire we know today was invented. Technology has really evolved!

Did you know that the pulley has existed since ancient times? The Greeks used it to build their temples. It is still used, especially in cranes. Technology has really evolved!