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It's AumSum Time
2

Humans have already created a huge garbage patch in the Pacific ocean.
How big is the Great Pacific Garbage Patch?
It cannot be bigger than me.
It cannot be bigger than me.

You are unbelievable.
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Every year, we dump around 8 million tonnes of plastic waste in the oceans.
Every year, we dump around 8 million tonnes of plastic waste in the oceans.

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Now, since plastic does not degrade easily.

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It keeps floating in the oceans for hundreds of years.

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Over time, strong winds and natural ocean currents cause this plastic to gather.

In five massive garbage patches.
The biggest garbage patch of them all is the Great Pacific Garbage Patch or GPGP.
It is in the Pacific Ocean between Hawaii and California.
According to estimations, nearly 1.8 trillion plastic pieces are floating in the GPGP.
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Which weigh about 90,000 tonnes.
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Also, some people say that the GPGP is twice the size of Texas.
Also, some people say that the GPGP is twice the size of Texas.
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Environmentalists are actively trying to develop alternatives for plastic.

We should also contribute and reduce its use.
We should also contribute and reduce its use.
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AumSum is going to entertain you with his 15 silly dance moves.
00:02:04,040 --> 00:02:05,880
Watch 1 move after every topic.

And give it a super cool name in the comments section below.
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And give it a super cool name in the comments section below.
Latent heat of vaporization.

Why does steam cause more severe burns than boiling water?
It is because steam is jealous of boiling water.
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No.
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Latent heat of vaporization.

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It is because of latent heat of vaporization.
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Why does steam cause more severe burns than boiling water?
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Latent heat of vaporization is the amount of heat energy required.
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of boiling water.
To change unit mass of liquid into vapor at atmospheric pressure at its boiling point.
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2:32,860 --> 00:02:33,860
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Trust me.
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29
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It is because of latent heat of vaporization.
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Everything just went over my head.
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30
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Alright.
t of vaporization is the amount of heat energy required.

To change unit mass of liquid into vapor at atmospheric pressure at its boiling point.
Boiling water contains only a specific amount of heat energy required for it to boil.
Trust me.
29

00:03:02,240 --> 00:03:08,000
Everything just went over my head.
ling water, it contains heat energy of boiling water.
34

Along with the latent heat of vaporization.
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ght.
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Hence, as steam has more heat energy, it can cause more severe burns than boiling water.
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ll explain it to you.
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Properties of a liquid.
:02:53,680 --> 00:02:58,800
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ing water contains only a specific amount of heat energy required for it to boil.
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is a diver able to cut through water in a swimming pool?
:03:02,240 --> 00:03:08,000
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ver, as steam is formed from boiling water, it contains heat energy of boiling water.
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le, because I taught him.
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g with the latent heat of vaporization.
:03:37,580 --> 00:03:38,420
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e, as steam has more heat energy, it can cause more severe burns than boiling water.
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This is because of intermolecular force.
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Properties of a liquid.
:03:43,960 --> 00:03:50,020
Intermolecular force is force of attraction present in between molecules of solids, liquids or gases.
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Why is a diver able to cut through water in a swimming pool?
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:03:51,020 --> 00:03:54,820
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the intermolecular forces in liquids are not very strong.
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Simple, because I taught him.
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This means, I am the strongest of all.
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No.
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se listen.
:03:38,740 --> 00:03:41,920
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is because of intermolecular force.
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e the intermolecular forces are not strong, the molecules of a liquid are loosely packed.
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Intermolecular force is force of attraction present in between molecules of solids, liquids or gases.
:04:08,920 --> 00:04:11,160
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they have empty spaces in between them.
:03:51,020 --> 00:03:54,820
Now, the intermolecular forces in liquids are not very strong.
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As a result, the molecules can be displaced from their original position.
:03:57,500 --> 00:04:00,680
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means, I am the strongest of all.
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Hence, when a diver jumps into water, its molecules get displaced from their original position.
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Please listen.

45
the diver is able to cut through the water.
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e the intermolecular forces are not strong, the molecules of a liquid are loosely packed.
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Myopia.
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:04:08,920 --> 00:04:11,160
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And they have empty spaces in between them.
:04:39,000 --> 00:04:40,860
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causes nearsightedness?
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result, the molecules can be displaced from their original position.
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Excess staring at junk food.
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e, when a diver jumps into water, its molecules get displaced from their original position.
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No.
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And the diver is able to cut through the water.
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When light from an object enters our eyes.

55
ia.
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eye lens bends it such that the image is formed on the retina.
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What causes nearsightedness?
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However, in some people, this image is formed before the retina.
:04:41,200 --> 00:04:43,080
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Excess staring at junk food.
:04:57,280 --> 00:04:59,880
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Such defect is called nearsightedness or myopia.
:04:43,640 --> 00:04:44,560
No.
:05:00,180 --> 00:05:03,900
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rson with myopia cannot see distant objects clearly.
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When light from an object enters our eyes.
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But why?
:04:48,880 --> 00:04:52,520
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Our eye lens bends it such that the image is formed on the retina.
00:05:05,620 --> 00:05:07,200
Wait, I will explain.

61
However, in some people, this image is formed before the retina.
00:05:07,580 --> 00:05:12,300
To focus image of a distant object on the retina, our eye lens becomes thin.

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Such defect is called nearsightedness or myopia.
00:05:12,640 --> 00:05:17,420
However, in people with myopia, the lens cannot become adequately thin.

A person with myopia cannot see distant objects clearly.
00:05:17,540 --> 00:05:21,620
Thus, forming image before the retina and making it difficult to see.

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why?
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over, when eyeball is elongated more than normal.
00:05:05,620 --> 00:05:07,200
Wait, I will explain.
00:05:25,280 --> 00:05:31,060
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Distance between lens and retina increases, resulting in the formation of image before the retina.
00:05:07,580 --> 00:05:12,300
To focus image of a distant object on the retina, our eye lens becomes thin.
00:05:31,580 --> 00:05:34,960
Thus, causing difficulty in seeing the distant object.
00:05:12,640 --> 00:05:17,420
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ver, in people with myopia, the lens cannot become adequately thin.
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Caffeine.
:05:17,540 --> 00:05:21,620
Thus, forming image before the retina and making it difficult to see.
00:05:49,140 --> 00:05:50,700
How does coffee keep you awake?
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:05:21,620 --> 00:05:25,100
Moreover, when eyeball is elongated more than normal.
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:05:50,820 --> 00:05:52,820
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By throwing an overnight party.
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Distance between lens and retina increases, resulting in the formation of image before the retina.
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:05:53,060 --> 00:05:54,200
No.

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, causing difficulty in seeing the distant object.
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When we perform our daily activities like thinking and playing.
:05:47,320 --> 00:05:47,920
Caffeine.
:05:58,120 --> 00:06:00,640
A byproduct called adenosine is produced.

How does coffee keep you awake?
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osine slows down the brain activity.
:05:50,820 --> 00:05:52,820
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hrowing an overnight party.
00:06:03,160 --> 00:06:04,160
But how?

No.
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00:06:04,360 --> 00:06:09,400
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In our brain, there are adenosine receptors which are perfectly moulded for this adenosine.
:05:54,660 --> 00:05:58,100
When we perform our daily activities like thinking and playing.
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00:06:09,400 --> 00:06:12,860
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When the adenosine binds to these receptors, it activates them.
00:05:58,120 --> 00:06:00,640
A byproduct called adenosine is produced.
:06:12,860 --> 00:06:17,620
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ing it to slow down the brain activity and thus, making us feel sleepy.
00:06:00,820 --> 00:06:02,960
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Adenosine slows down the brain activity.
:06:18,080 --> 00:06:21,900
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ver, drinking coffee keeps us awake and we do not feel sleepy.
00:06:03,160 --> 00:06:04,160
But how?
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This is because coffee contains a drug called caffeine which after digestion reaches our brain.
:06:04,360 --> 00:06:09,400
In our brain, there are adenosine receptors which are perfectly moulded for this adenosine.
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Caffeine is structurally similar to adenosine.
:06:09,400 --> 00:06:12,860
When the adenosine binds to these receptors, it activates them.
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81
6:12,860 --> 00:06:17,620
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Causing it to slow down the brain activity and thus, making us feel sleepy.
Being similar, caffeine binds to the adenosine receptors.
00:06:18,080 --> 00:06:21,900
00:06:33,500 --> 00:06:35,880
However, drinking coffee keeps us awake and we do not feel sleepy.
d thus, blocks the adenosine from binding.

00:06:36,220 --> 00:06:41,180
a drug called caffeine which after digestion reaches our brain.
nce, as adenosine does not bind, our receptors do not slow the brain activity.

Caffeine is structurally similar to adenosine.
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As a result, we remain awake.
Being similar, caffeine binds to the adenosine receptors.
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82
6:54,340 --> 00:06:55,540
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And thus, blocks the adenosine from binding.
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00:06:36,220 --> 00:06:41,180
Hence, as adenosine does not bind, our receptors do not slow the brain activity.
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As a result, we remain awake.
Paper cut.
No.

00:06:56,260 --> 00:06:58,220
We use our fingers and hands to sense our surroundings.

It is because paper hates us.
nociceptors than any other parts of our body.

Nociceptors are pain receptors that respond to change in pressure, temperature, etc.
Now, the edges of the paper are not smooth but are rough or jagged.
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They are like a saw.
:12,660
nce, they have more number of nociceptors than any other parts of our body.
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91
7:27,360 --> 00:07:28,440
Absolutely.
--> 00:07:18,060
Nociceptors are pain receptors that respond to change in pressure, temperature, etc.
00:07:28,820 --> 00:07:33,400
00:07:20,320 --> 00:07:24,160
r hands or especially fingertips against the edges.
w, the edges of the paper are not smooth but are rough or jagged.

It cuts them like a saw, activating the nociceptors.
ey are like a saw.
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94
7:36,680 --> 00:07:40,820
Now, as there are more nociceptors on our hands, we feel more.
solutely.
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Hence, sometimes when we rub our hands or especially fingertips against the edges.
micals.
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It cuts them like a saw, activating the nociceptors.
.

00:07:36,680 --> 00:07:40,820
Now, as there are more nociceptors on our hands, we feel more.

Why do limbs fall asleep?
per cut might also have fragments of paper containing chemicals.
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00:08:04,460 --> 00:08:06,120
Because they are tired.
in and thus increase the pain.

Pins and needles.
Why do limbs fall asleep?
e of nerves.

Because they are tired.
communicates with our limbs.

Nerves are so amazing.
It basically happens because of nerves.
00:08:13,720 --> 00:08:16,460
Through nerves, our brain communicates with our limbs.
ery long, we apply pressure.

Causing the nerve pathways and its surrounding arteries to squeeze.
Yes.
Hence, the nerves do not work properly.

And the arteries cannot supply required nutrients to the nerves.
we apply pressure.
112

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As a result, the signals sent by our brain do not reach the limb.

Hence, the nerves do not work properly.
So, we say that our limb has fallen asleep.
ents to the nerves.

Also, in some situations, some of these squeezed nerves stop sending signals.
While some fire hyperactively.
Thus, we cannot move it.
117

So, we say that our limb has fallen asleep.
es.

Also, in some situations, some of these squeezed nerves stop sending signals.
A color festival.
While some fire hyperactively.

No.
gives us the sensation of pins and needles.

Color blindness or color deficiency is a vision problem.
What is color blindness?

00:09:12,780 --> 00:09:14,180
A color festival.
Now, our eyes have light sensitive cells called rods and cones.
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Can I put ice cream on these cones?

00:09:29,740 --> 00:09:31,860
ency is a vision problem.
You are just unbelievable.
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125
:19,440 --> 00:09:23,800
00:09:32,000 --> 00:09:34,580
Now, our eyes have light sensitive cells called rods and cones.
ds are responsible for black and white vision.
3

00:09:35,200 --> 00:09:36,780
nes?

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Where is the Biggest Garbage Dump on Earth? | #aumsum

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Amy.Lin 2019 年 4 月 13 日 に公開
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