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.

00:00:35,920 --> 00:00:40,460 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.

00:00:45,620 --> 00:00:49,280 Now, since plastic does not degrade easily.

00:00:49,480 --> 00:00:52,260 It keeps floating in the oceans for hundreds of years.

00:00:55,900 --> 00:01:03,080 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. 14

Which weigh about 90,000 tonnes.

00:01:35,020 --> 00:01:40,140 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. 16

00:01:45,340 --> 00:01:49,840 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. 18

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. 21 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. 24

No. 00:02:19,440 --> 00:02:22,020 25 Latent heat of vaporization.

00:02:22,740 --> 00:02:26,640 It is because of latent heat of vaporization. 26 Why does steam cause more severe burns than boiling water? 00:02:37,040 --> 00:02:40,620 Latent heat of vaporization is the amount of heat energy required. 23

00:02:40,620 --> 00:02:45,420 of boiling water. To change unit mass of liquid into vapor at atmospheric pressure at its boiling point. 24 28 2:32,860 --> 00:02:33,860 00:02:47,560 --> 00:02:48,240 Trust me. 25 29 00:02:34,180 --> 00:02:36,700 It is because of latent heat of vaporization. 00:02:48,600 --> 00:02:50,540 Everything just went over my head. 26 30 00:02:50,760 --> 00:02:51,760 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. 00:02:50,760 --> 00:02:51,760 35 ght. 00:03:10,480 --> 00:03:16,700 Hence, as steam has more heat energy, it can cause more severe burns than boiling water. 00:02:51,980 --> 00:02:53,680 36 ll explain it to you. 00:03:26,620 --> 00:03:28,600 Properties of a liquid. :02:53,680 --> 00:02:58,800 37 ing water contains only a specific amount of heat energy required for it to boil. :03:29,280 --> 00:03:32,380 33 is a diver able to cut through water in a swimming pool? :03:02,240 --> 00:03:08,000 38 ver, as steam is formed from boiling water, it contains heat energy of boiling water. 00:03:33,180 --> 00:03:34,920 34 le, because I taught him. :03:08,240 --> 00:03:10,240 39 g with the latent heat of vaporization. :03:37,580 --> 00:03:38,420 35 00:03:10,480 --> 00:03:16,700 40 e, as steam has more heat energy, it can cause more severe burns than boiling water. 00:03:38,740 --> 00:03:41,920 This is because of intermolecular force. 00:03:26,620 --> 00:03:28,600 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. 00:03:29,280 --> 00:03:32,380 Why is a diver able to cut through water in a swimming pool? 42 :03:51,020 --> 00:03:54,820 38 the intermolecular forces in liquids are not very strong. 00:03:33,180 --> 00:03:34,920 Simple, because I taught him. 43 00:03:57,500 --> 00:04:00,680 This means, I am the strongest of all. 00:03:37,580 --> 00:03:38,420 No. 00:04:01,280 --> 00:04:02,640 40 se listen. :03:38,740 --> 00:03:41,920 45 is because of intermolecular force. :04:03,560 --> 00:04:08,920 41 e the intermolecular forces are not strong, the molecules of a liquid are loosely packed. 00:03:43,960 --> 00:03:50,020 Intermolecular force is force of attraction present in between molecules of solids, liquids or gases. :04:08,920 --> 00:04:11,160 42 they have empty spaces in between them. :03:51,020 --> 00:03:54,820 Now, the intermolecular forces in liquids are not very strong. 00:04:11,360 --> 00:04:16,540 43 As a result, the molecules can be displaced from their original position. :03:57,500 --> 00:04:00,680 48 means, I am the strongest of all. 00:04:19,740 --> 00:04:25,080 Hence, when a diver jumps into water, its molecules get displaced from their original position. 00:04:01,280 --> 00:04:02,640 Please listen.

45 the diver is able to cut through the water. 00:04:03,560 --> 00:04:08,920 50 e the intermolecular forces are not strong, the molecules of a liquid are loosely packed. 00:04:36,720 --> 00:04:37,320 Myopia. 46 :04:08,920 --> 00:04:11,160 51 And they have empty spaces in between them. :04:39,000 --> 00:04:40,860 47 causes nearsightedness? 00:04:11,360 --> 00:04:16,540 52 result, the molecules can be displaced from their original position. 00:04:41,200 --> 00:04:43,080 Excess staring at junk food. 00:04:19,740 --> 00:04:25,080 53 e, when a diver jumps into water, its molecules get displaced from their original position. 00:04:43,640 --> 00:04:44,560 No. :04:25,080 --> 00:04:27,900 54 And the diver is able to cut through the water. 00:04:46,160 --> 00:04:48,760 When light from an object enters our eyes.

55 ia. 00:04:48,880 --> 00:04:52,520 51 eye lens bends it such that the image is formed on the retina. 00:04:39,000 --> 00:04:40,860 56 What causes nearsightedness? 00:04:53,060 --> 00:04:56,720 However, in some people, this image is formed before the retina. :04:41,200 --> 00:04:43,080 57 Excess staring at junk food. :04:57,280 --> 00:04:59,880 53 Such defect is called nearsightedness or myopia. :04:43,640 --> 00:04:44,560 No. :05:00,180 --> 00:05:03,900 54 rson with myopia cannot see distant objects clearly. 00:04:46,160 --> 00:04:48,760 59 When light from an object enters our eyes. 00:05:04,280 --> 00:05:05,040 But why? :04:48,880 --> 00:04:52,520 60 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.

62 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.

64 why? 00:05:21,620 --> 00:05:25,100 60 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 61 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 67 ver, in people with myopia, the lens cannot become adequately thin. 00:05:47,320 --> 00:05:47,920 63 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? 64 :05:21,620 --> 00:05:25,100 Moreover, when eyeball is elongated more than normal. 69 :05:50,820 --> 00:05:52,820 65 By throwing an overnight party. 00:05:25,280 --> 00:05:31,060 Distance between lens and retina increases, resulting in the formation of image before the retina. 70 :05:53,060 --> 00:05:54,200 No.

71 , causing difficulty in seeing the distant object. 00:05:54,660 --> 00:05:58,100 67 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? 00:06:00,820 --> 00:06:02,960 69 osine slows down the brain activity. :05:50,820 --> 00:05:52,820 74 hrowing an overnight party. 00:06:03,160 --> 00:06:04,160 But how?

No. 75 00:06:04,360 --> 00:06:09,400 71 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. 76 00:06:09,400 --> 00:06:12,860 72 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 73 ing it to slow down the brain activity and thus, making us feel sleepy. 00:06:00,820 --> 00:06:02,960 78 Adenosine slows down the brain activity. :06:18,080 --> 00:06:21,900 74 ver, drinking coffee keeps us awake and we do not feel sleepy. 00:06:03,160 --> 00:06:04,160 But how? 00:06:22,100 --> 00:06:27,460 75 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. 80 00:06:27,820 --> 00:06:30,200 Caffeine is structurally similar to adenosine. :06:09,400 --> 00:06:12,860 When the adenosine binds to these receptors, it activates them. 77 81 6:12,860 --> 00:06:17,620 00:06:30,560 --> 00:06:33,460 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. 00:06:41,480 --> 00:06:44,120 81 As a result, we remain awake. Being similar, caffeine binds to the adenosine receptors. 85 82 6:54,340 --> 00:06:55,540 00:06:33,500 --> 00:06:35,880 And thus, blocks the adenosine from binding. 00:06:56,260 --> 00:06:58,220 00:06:36,220 --> 00:06:41,180 Hence, as adenosine does not bind, our receptors do not slow the brain activity. 84

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.

90 They are like a saw. :12,660 nce, they have more number of nociceptors than any other parts of our body. 94 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. 97 94 7:36,680 --> 00:07:40,820 Now, as there are more nociceptors on our hands, we feel more. solutely. 98

Hence, sometimes when we rub our hands or especially fingertips against the edges. micals. 99

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. 99 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

00:08:26,320 --> 00:08:29,640 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. 120

00:09:26,400 --> 00:09:28,580 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. 122 125 :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?