We calculate the actual speed of the tsunami by measuring the water depth at a point in time when the tsunami passes by. A tsunami's ability to maintain speed is directly influenced by the depth of the water. A tsunami moves faster in deeper water and slower in shallower water. So unlike a normal wave, the driving energy of a tsunami moves through the water as opposed to on top of it. Therefore, as a tsunami moves though deep water at hundreds of miles an hour, it is barely noticeable above the waterline. A tsunami is typically no more than 3 feet (1 meter) high until it gets close to shore. Once a tsunami gets close to shore, it takes its more recognizable and deadly form.
Adult head lice can live for approximately 24 hours away from a host, according to the Centers for Disease Control. Nymphs, or young head lice, can live for only several hours away from a host. Lice eggs are less dependent on a host, and they can live for up to one week without a host. Continue Reading.
They can only actually live off of the head for up to 48 hours. It is not likely that they are living in your bedding but it can happen. If you have head lice you definitely n â¦ eed to vacuum your bed. You also need to wash your bedding on hot and dry them on high for 30 minutes.ead lice can usually live for about 30 days. But when you get head lice, they are very hard to get rid of. Even after treatments the hair should be combed out everyday to re â¦ move nits and everything in the home should be washed at least twice a week if possible.