Name: 為什麼死鯨會爆炸？| 鯨魚 (Why do Dead Whales Explode? | #aumsum)
Uploaded: 2021-01-14T08:10:10.000Z
Duration: 5 min 23 s
Description: 【看影片學英語】數萬部 YouTube 影片，搭配英漢字典即點即查，輕鬆掌握單字發音與用法，長久累積看電影不必再看字幕。

Can you guess the title of my next video?

Write your guess in the comments section below.

Coz there are thousands of firecrackers in
their bodies!!

When a dead whale accidentally gets washed up on a beach.

It begins to decompose as it is not eaten up by sharks or other fishes.

During decomposition, various gases like methane and carbon dioxide are produced within its body.

But since there is a thick layer of blubber
under the skin of whales, the gases cannot escape out.

Thus, they begin to build up inside the whale's body, causing it to bloat.

Now such gases are also produced in other animals after their death.

But since the body of a whale is large, it produces more gases, thus increasing the pressure in its body.

Eventually, due to the increased pressure,
the accumulated gases, tissues, flesh, etc.

Forcefully come out through weak spots, thus creating an explosion.

Hence, it is always advised to not stand or sit on a dead whale.

Because it might lead to increased pressure at weak spots, thus causing an explosion.

Hence, dolphins need to come up to the surface of water at regular intervals to breathe.

Also, dolphins have to protect themselves
from dangerous predators.

Each eye of a dolphin is directly connected
to the opposite hemisphere of the brain.

Now, while sleeping, a dolphin shuts down
one hemisphere and the opposite eye.

In the meantime, the other active hemisphere keeps track of internal bodily functions like breathing.

After 2 to 4 hours, the dolphin swaps the
sleeping task.

It awakens the closed eye and resting hemisphere, and shuts down the active hemisphere and the open eye.

This type of sleep is called unihemispheric
slow-wave sleep.

Dry ice is basically solid carbon dioxide.

The surface temperature of a dry ice block
is about -78 degrees Celsius or -109 degrees Fahrenheit.

This means it is much cooler than ordinary
ice which is made up of water.

If dry ice comes in contact with our skin, our cells begin to freeze and die within seconds, thus giving us severe frostbite.

In addition to this, storing dry ice in airtight
containers can be dangerous.

This is because dry ice sublimates, i.e., it directly gets converted from solid state to gaseous state.

The gas produced can build up and exert pressure on the walls of container which can lead to a dangerous explosion.

So that we can sleep for two more hours!!

When we wake up in the morning, we yawn and stretch our arms and legs.

This coordinated yawning and stretching is
referred to as pandiculation.

I thought it is referred to as calculation!!

When we are asleep, we don't perform any
activities.

Hence, our heart rate becomes slow and the blood flow is decreased.

Also, as many people lie in the same position for long hours, their muscles become stiff and tight.

Thus, a good stretch in the morning awakens our body.

It brings our heart rate back to normal, improving the blood flow to various body parts.

Stretching also loosens and realigns our stiff muscles, making them more flexible and ready for the day ahead.

The major reason for red to be used as a danger signal is its wavelength.

Wavelength is the distance between two sea waves!!

In the wave theory of light, the distance between successive crests or troughs is called wavelength.

Longer the wavelength, lesser will be the
scattering of light.

Now, among the colors of visible light, red
has the longest wavelength.

Hence, it is least scattered by the atmospheric particles.

As a result, whether it is fog or smoke, red
light passes comparatively easily through them.

Thus, it can be seen from maximum distance, making red color the right choice to convey any danger.

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為什麼死鯨會爆炸？| 鯨魚 (Why do Dead Whales Explode? | #aumsum)

stretch

improve

severe

solid