Okay kiddo, let me tell you about the GHz experiment.
First, do you know what GHz means? It stands for gigahertz, which is a way to measure how fast something is moving. Just like you can measure how fast you run in miles per hour or kilometers per hour, we can measure how fast computers and other electronic devices work in gigahertz.
Now, scientists wanted to do an experiment to see how fast they could make a tiny little computer chip work. They set up a special machine called a chip tester, which is like a high-tech microscope that can measure how fast the chip is working.
They put the little chip inside the tester and started sending electricity through it. The chip started working and they could measure how fast it was processing information. They kept turning up the power until they got the chip to work at 1 terahertz, which is 1,000 gigahertz!
That's really fast, even for a regular computer. But the scientists didn't stop there. They wanted to see what would happen if they cooled down the chip to a super cold temperature.
So they put the chip in a special cooler that made it really cold, almost as cold as outer space! They sent electricity through the chip again and this time it worked at an amazing 1.5 terahertz, which is 1,500 gigahertz!
That's like running around the entire playground 15 times in just one second. The scientists were really excited about this because it means they can make even faster computers and other electronic devices in the future.
So, that's the GHz experiment - a cool test to see how fast we can make tiny computer chips work and how they react to extreme cold temperatures. Isn't science amazing?