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.
Taking your babyâs temperature is the most accurate way to determine if he has a fever. Take his temperature rectally if heâs under 3 months old, since this is the most accurate method for babies that young. Your baby has a fever if his temperature is over 100.4 degrees Fahrenheit.