The larger these peaks and valleys are, the harder it is to slide the object. You can learn more about friction in How Brakes Work. A clutch works because of friction between a clutch plate and a flywheel. We'll look at how these parts work together in the next section.
You should take children older than 3 months to the emergency room (ER) for a fever if the fever is more than 104 degrees for a long period of time. Ice them down first and then bring them to the ER.
What's the right temperature? Anywhere between 16ÂºC and 20ÂºC is a good temperature for your baby, and around 18ÂºC (65ÂºF) is ideal, says Jennifer Ward Head of support and development at The Lullaby Trust. That's actually cooler than most people would expect the ideal temperature to be.