Building the Burj Khalifa was a tough job for scientists. They needed 4,000 tons of steel for it. The antenna on top weighs 350 tons. People can go up to the 154th floor, but floors 155 to 163 aren’t safe for living.
These upper floors can swing because of the wind. This is the biggest engineering marvel of the Burj Khalifa. It’s designed to protect the lower floors when the wind blows. The top spire of the Burj Khalifa is made of steel.
This spire moves when the wind blows. It can swing up to 6 feet. It protects Dubai from lightning. Inside, there’s a sensor that attracts lightning.
This sensor helps the building draw lightning away from the city. The lightning rod on the Burj Khalifa protects other buildings in Dubai from lightning.
The building has lots of big transparent windows. These aren’t ordinary windows. They keep heat out. This way, extreme temperatures outside don’t come in. The windows also act like solar panels.
They can make electricity from the sun. They keep people inside cool. The temperature at the top of the Burj Khalifa is only 6 degrees Celsius. So, they also keep people warm when it’s cold outside. The Burj Khalifa is a special building.
