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.
One of the biggest causes of re-infestation is not getting the lice out of your environment. Lice will live up to 48 hours off your head, and nits will survive for up to 10 days on your sofa, your car seats, your bedding, etc.t loosens the glue lice use to stick to the hair shaft, so most lice and nits will rinse out down your drain. Conditioning Hair plumps and softens your hair, while soothing itchy scalps. Aloe Vera helps to heal bites. It also makes the comb glide through the hair with ease, and helps protect against re-infestations.