How To Make Your Lungs Explode When Scuba Diving

Summary

This video demonstrates how air volume changes with depth when diving. Using a plastic bag to mimic lungs, it shows air compression and expansion underwater. Free divers hold a constant volume of air, but scuba divers carry an external source, which can lead to lung rupture if not managed properly. The video emphasizes the importance of breathing out during ascents to prevent injury and encourages taking a certification course for safe diving practices.

Takeaways

• 💡 When you dive, the volume of air in your lungs changes due to water pressure.
• 🌊 At the surface, the air in the lungs (or a plastic bag simulating lungs) is fully inflated.
• 📉 As you swim down, the increased water pressure compresses the air, making the lungs feel softer.
• 📈 When ascending, the air in the lungs expands again due to decreased pressure.
• 🤿 Free divers hold their breath at a constant volume of air throughout the dive.
• 🤿 Scuba divers carry an external air source, which expands as they ascend.
• ⚠️ Holding your breath while ascending with scuba gear can lead to lung rupture.
• 🩺 Lungs won't explode but can rupture, allowing air to leak into the chest cavity.
• 🏊‍♂️ It's crucial to breathe out gradually while ascending to prevent lung damage.
• ⏰ Holding your breath at a constant depth while scuba diving is safe and not dangerous.
• 📚 The video encourages taking a certification course for safe diving practices.

Q & A

What does the plastic bag represent in the video?

The plastic bag represents the lungs, illustrating the changes in air volume as one swims up and down in water.

Why does the air in the plastic bag get compressed when the host swims down?

The air in the plastic bag gets compressed due to the increase in water pressure at greater depths, which reduces the volume of the air inside.

What happens to the volume of air when the host swims back up to the surface?

When the host swims back up to the surface, the air in the plastic bag expands again because the water pressure decreases, allowing the air to fill the bag completely.

Why is it important to breathe in and out during a scuba dive?

It is important to breathe in and out during a scuba dive to prevent lung rupture from the expanding air volume as one ascends, which can lead to serious injury.

What is the difference between free diving and scuba diving in terms of air volume management?

In free diving, the volume of air in the lungs remains constant as it is the air breathed in at the surface. In scuba diving, an external air source is used, and the volume of air can double from depth to surface if not managed properly.

What is the risk of holding one's breath while ascending in scuba diving?

Holding one's breath while ascending in scuba diving can cause the lungs to rupture due to the rapid expansion of air, which is dangerous and should be avoided.

Why does the host mention that lungs won't 'explode' but can rupture?

The host clarifies that lungs won't explode like a balloon, but they can rupture if the pressure inside them becomes too great, such as when holding one's breath while ascending.

What demonstration does the host use to show the risk of holding breath while ascending?

The host uses a plastic bag made from ice cubes to demonstrate how the bag can rupture and leak air when ascending from the bottom to the surface while holding breath.

What is the advice given for those planning to go scuba diving or diving in any way?

The advice given is to take a certification or a course to ensure safety and awareness of the risks and proper techniques involved in diving.

Why is it not dangerous to hold one's breath at a constant depth while scuba diving?

Holding one's breath at a constant depth while scuba diving is not dangerous because the pressure is consistent, and the volume of air in the lungs does not change significantly.

Outlines

00:00

🌊 Effects of Pressure on Air Volume During Diving

This video demonstrates the impact of water pressure on air volume, using a plastic bag to symbolize the human lungs. At the water's surface, the bag is inflated with air, representing full lungs. As the presenter swims downward, the increasing pressure compresses the air, causing the bag to deflate. Upon returning to the surface, the air expands, and the bag re-inflates. This illustrates the principle that a diver's lungs maintain a constant volume of air during a free dive, inhaling at the surface and exhaling as they ascend. The video contrasts this with scuba diving, where an external air source allows for greater volume changes with depth. It warns of the dangers of holding one's breath while ascending, as肺部扩张过度可能导致肺部破裂。 The presenter uses a plastic bag made of ice to visually show how air can rupture the bag, mimicking a lung rupture. The video concludes with a recommendation for diving safety through certification and education.

Keywords

💡Volume

Volume refers to the amount of space that a substance or object occupies. In the context of the video, it is used to explain how the volume of air changes as one dives deeper into the water or ascends to the surface. The video illustrates that when a person swims down, the air in their lungs gets compressed due to increased pressure, reducing its volume, and when they swim up, the air expands, increasing its volume.

💡Lungs

Lungs are the primary organs of the respiratory system in humans, responsible for the exchange of oxygen and carbon dioxide. The video uses a plastic bag to represent the lungs, demonstrating how they expand and contract with changes in air pressure during diving. It emphasizes the importance of lung health and safety in relation to diving activities.

💡Compression

Compression in the video refers to the reduction in volume of a gas, such as air, due to increased pressure. This is a critical concept as it explains what happens to the air in a diver's lungs when they descend in the water. The video shows that the air in the plastic bag, representing the lungs, gets compressed and the bag becomes soft, simulating the effect of increased water pressure on the air volume in the lungs.

💡Expansion

Expansion is the opposite of compression and refers to the increase in volume of a substance when pressure is reduced. The video demonstrates this by showing how the air in the plastic bag expands as the diver ascends to the surface, where the pressure is lower. This concept is crucial to understanding the physiological changes that occur in the body during diving.

💡Free Diving

Free diving is a form of underwater diving that relies on the diver's ability to hold their breath until resurfacing. The video explains that during free diving, the volume of air in the lungs remains constant because the diver breathes in at the surface and holds their breath while diving. This is contrasted with scuba diving, where the volume of air can change significantly due to the use of an external air source.

💡Scuba Diving

Scuba diving involves the use of a self-contained underwater breathing apparatus, allowing divers to breathe underwater for extended periods. The video highlights the difference between free diving and scuba diving, particularly in how the volume of air changes with depth. It warns of the dangers of holding one's breath while ascending in scuba diving due to the risk of lung rupture.

💡Pressure

Pressure in the context of the video refers to the force exerted per unit area, which increases with depth in water. It is a key factor affecting the volume of air in a diver's lungs. The video uses the plastic bag demonstration to show how increased pressure at depth compresses the air, and decreased pressure at the surface allows the air to expand.

💡Rupture

Rupture, as used in the video, refers to the tearing or bursting of a body part, such as the lungs, due to excessive pressure. The video warns that if a scuba diver holds their breath while ascending, the expanding air in their lungs could potentially cause a rupture, leading to serious injury. This illustrates the importance of proper breathing techniques during ascents in scuba diving.

💡Certification

Certification in the video refers to the process of obtaining official recognition of one's competence or training in a particular field, such as diving. The video encourages viewers to pursue certification or courses to ensure they are knowledgeable and safe when engaging in diving activities, highlighting the potential dangers of diving without proper training.

💡Breathing Techniques

Breathing techniques are methods of controlling one's breath for specific purposes, such as during physical activities or in high-pressure environments. The video emphasizes the importance of proper breathing techniques, particularly exhaling during ascents in scuba diving, to prevent lung rupture due to the expansion of air in the lungs.

Highlights

Demonstrates the effect of pressure on air volume when swimming underwater.

Uses a plastic bag to represent the lungs and illustrate air compression.

Shows how air in the plastic bag compresses when swimming down.

Explains that the air expands again when swimming back up to the surface.

Relates the experiment to the experience of free diving with a constant volume of air in the lungs.

Differentiates between free diving and scuba diving regarding air volume changes.

Warns of the risk of lung rupture when holding breath while ascending in scuba diving.

Visualizes lung rupture with a plastic bag made from ice cubes.

Advises breathing out throughout the dive to prevent lung rupture.

Clarifies that holding breath at a constant depth is not dangerous.

Recommends taking a certification course for safe diving practices.

Encourages viewers to subscribe for more educational content on diving and related activities.

Stresses the importance of education in diving to avoid unknown risks.

Provides a friendly reminder to have a nice day after learning about diving safety.

Transcripts

this video i will show you guys what

happens to the volume of the air when

you swim up and down in the water

to illustrate this i will use this

plastic bag which represents your lungs

so you can see at the surface i'm

inflating the plastic bag so it's

completely full of air and then i'm

sealing it at the bottom

now when i swim down to the bottom of

the pool you can see that the air is

getting compressed and the

plastic bag gets soft again

and when i go back up to the surface you

can see the air expands again and then

you can see it's completely full of air

this is actually exactly what happens

when you're free diving because you have

a constant volume of air inside your

lungs when you die

that's because you breathe in at the

surface and then you hold your breath

while you swim down and come back up to

the surface so it's the same amount of

air throughout the whole dive

but when you're scuba diving you are

bringing with you an external air source

down to the depths that means

if you breathe in at 10 meters

and then hold your breath all the way up

to the surface

that air that was 5 liters at the bottom

will now be 10 liters of volume at the

surface

but since your lungs can only expand so

much what will happen is you will

rupture your lung your lungs won't

explode like you saw in this first

picture

but

they will rupture and it the air would

start leaking into your chest

outside of your lungs

you can see this with this plastic bag

made from making ice cubes

you can see that i start at the bottom

and when i get about halfway up to the

surface it has ruptured because of the

expanding air and you see the air

leaking out you can't die from this

so it's really important that you

breathe out through the whole dive when

you're swimming up

if you're staying on the same level in

the water then it's not a problem

because you can stay at 10 meters you

can take a deep breath with a scuba

diving tank and then hold your breath

for a minute it's not dangerous in that

way

same if you're swimming down it's not

recommended but it won't cause your

lungs to rupture

but when you swim up then you get in

trouble if you hold your breath i hope

you learned something from this video

and uh if you are planning to go scuba

diving or diving

in any way please take a certification

or a course to make sure that it's 100

safe what you're doing there's a lot of

things you don't know about diving if

you haven't taken a course so if you

like this video just subscribe to this

account hit the little bell and you will

get a notification next time we upload a

video about diving or scuba diving free

diving swimming or whatever

have a nice day