The lungs and related chest muscles are not as powerful as you may think. Once you get them into a only a couple feet (half-meter) of water they are not strong enough to fight against the water pressure. If you were to experiment breathing through a hose in a swimming pool you would soon find that the lungs were straining even at shallow depths.
Even if standing upright underwater, with the top of your head level with the top of the water, you would not be able to breathe. So those commando movies with people hiding underwater breathing through straws - they are lying flat in the shallows, not standing upright!
Scuba tanks not only deliver air to your lungs, but pressurized air (more pressure the deeper you go), to get the lungs to work against the water pressure.
make a snorkel that is more than a meter long so u can go deeper ?
Entirely possible if you hold your breath.
Breathing underwater can be difficult if you do not have the right equipment. A snorkel can help you to breath or you could use a scuba diving mask with oxygen.
When you get to the suface with your head down take a breath off your regulator the take it out of your mouth. Put the snorkel mouth piece in your mouth and blow really hard.
goggles and snorkel or an oxegen tank used for deep sea diving
Because without mechanical means of helping to pushing the air, the pressure under even short depths of water render it impossible for a person to breath in or out through it anyways.
You should actually breath in through your nose as this allows the inhaled breath to become warm and moist due to the greater number of blood vessels in your nose. You should breath out through your mouth so you do not loose moisture or warmth. SC because if you can do thought other one aleaste still breath
A snorkel is a breathing device that is used to dive in shallow areas of water. It has a goggle with a breathing tube attached so when a person goes underwater they can breath, but the tube has to stay above the water unlike skin diving.
oxygen is used for many different things such as breathing we breath oxygen out and in also divers use a snorkel which gives them access to breath under water for an amount of time
It allows you to breath comfortably on the surface. Raising your head out of the water is quickly tiring during a long surface swim.
It is possible.
If you meant what are snorkels and what are they used for the answers are a snorkel is something that goes over your mouth and its used so that when you go under water you can still breath.