Name: 百慕大三角之謎解開了嗎？| 百慕大三角之謎是否已經解開？ (Has the Bermuda Triangle mystery been Solved? | #aumsum)
Uploaded: 2021-01-14T08:09:22.000Z
Duration: 6 min 42 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.

Has the Bermuda Triangle mystery been solved?

The Bermuda Triangle is roughly a triangular region of the Atlantic Ocean between Bermuda, Florida and Puerto Rico.

Here, many ships, boats, planes, etc. have reportedly disappeared under mysterious circumstances.

According to a recent study, experts theorize that a natural phenomenon known as rogue waves.

Are the main reason for some of these mysterious disappearances.

Rough stormy seas of this region can create rogue waves which are about 100 feet high.

These high waves can easily damage ships and boats.

Another theory states that hexagonal clouds found in this area can act like air bombs.

These winds can destroy planes and create waves which can destroy ships.

Some people believe that a strange magnetic anomaly affects the compass readings.

Others even attribute the events to UFOs or
aliens.

Our skin has three layers, epidermis, dermis and hypo dermis.

Epidermis sheds thousands of skin cells every day.

The tattoo needles which are coated with colored pigment are inserted through the epidermis into the dermis.

Thus preventing the tattoo pigment from getting shed away.

However, it is mainly our body's immune response which makes tattoos permanent.

The tattoo needles create wounds in the skin, activating the immune response.

Reach the wounded site and start to eat the small particles of colored pigment and clean the area.

Bigger pigment particles that cannot be eaten by macrophages are absorbed by fibroblasts present in the dermis.

These fibroblasts along with some macrophages remain at the site, making the tattoo permanent.

Whether an object is heavy or light, all objects accelerate at the same rate towards the earth.

This means all objects should fall at the
same speed, right?

However, this happens only when there is vacuum.

A scientist named Robert Boyle placed a coin and a feather in a big glass jar.

Removed all the air from it, thus creating a vacuum.

He then inverted the jar and observed that
both the objects fell to the bottom at the same time.

But this doesn't happen on earth because here the speed of falling objects depends upon their surface area and air resistance.

The feather has more surface area as compared to the coin.

Hence, more air pushes against the feather due to which it experiences greater air resistance.

Thus, the feather falls slower as compared to the coin.

Goosebumps served a purpose for our ancestors who had a lot of hair on their body.

When our ancestors felt cold, their adrenal
glands produced adrenaline.

Adrenaline caused the arrector pili muscles which are attached to the hair follicles to contract.

Creating shallow depressions on he skin surface.

Making the hair stand straight up, thus causing goosebumps.

The straightened hair trapped more air which prevented their body heat from escaping and hence, kept them warm.

Also, when our ancestors felt afraid of any
animal.

The adrenaline made their hair stand up, making them look bigger and thus, scared their attacker.

Now, as this characteristic of goosebumps
is inherited by us.

We also get them during strong emotions or when it is cold.

But do you know why your magic wand appeared bent in water?

Refraction of light is the change in direction of light when it passes from one medium to another obliquely.

So, what do you think are the two media here?

When the light rays coming from the tip of
the magic wand pass from water to air.

They change their direction, i.e., they get refracted.

When these refracted rays reach our eyes,
our eyes trace them backward as straight lines.

Due to this, the rays appear to come from
a point slightly above the original position.

Hence, the magic wand appears to be bent in water.

Similarly, like the magic wand, a pencil appears to be bent in water.