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Why are Tennis balls Yellow and Fuzzy? | #aumsum


It’s AumSum Time Why are tennis balls yellow and fuzzy? Because they like to show off. Earlier, tennis balls were white. But later, they were changed to yellow. Because studies showed that yellow balls were easier to see on televisions. Now, tennis balls are fuzzy because the fuzz helps them slow down. When a tennis ball moves through air. Every fiber of fuzz acts like an obstacle
for air. This increases the drag, thus slowing it down. Besides this, the fuzz also increases the
spin. Imagine a ball spinning in clockwise direction. Now, above the ball, the direction of air
is same as the direction of rotation. However, below the ball, it is opposite. This opposing force combined with the fuzz increase the drag below the ball. Hence, the pressure below becomes much higher than it is above. This pressure difference imparts a lift, thus increasing the spin. Why do pop rocks pop? Because they have springs in their legs. No. Pop rocks are tiny candy crystals. Candies are usually made using sugar, water, corn syrup, various flavorings, etc. Initially, all these ingredients are mixed
together. The resulting solution is heated until most of the water boils off. And we are left with a thick sticky syrup. Usually, this syrup is poured in moulds, allowed to cool and harden to make candies. However, to make pop rocks, highly pressurized carbon dioxide gas is added to the syrup. And then, it is cooled to subsequently form a hard candy. This results in formation of bubbles of pressurized carbon dioxide trapped inside candy. Now, when we put this candy in our mouth, our saliva dissolves the candy. As a result, the highly pressurized carbon dioxide escapes from bubbles with a pop. Why do elephants have big ears? To fly. Not at all. Ears basically help to hear. Besides this, big ears of the elephants also help it to regulate its body temperature. But how can ears help to regulate body temperature? In living beings like elephants, blood supplies heat to all parts of the body. Thus, helping it to maintain the body temperature. However, due to metabolic activities or hot climate, sometimes heat in blood can increase. Thus, increasing the body temperature of the elephant. Now an elephant’s big ears are filled with blood vessels. Which are very close to the surface of skin. Hence, when blood having more amount of heat flows through the ears of the elephant. The heat from the blood escapes into the atmosphere. Cooling the blood and in turn cooling the elephant. Why don’t spiders stick to their webs? I do not know. Usually, a spider’s web is made of silk threads which are covered with droplets of glue. This glue makes the threads sticky. Now, when an insect flies through web, the insect normally gets stuck to sticky threads. But spider does not get stuck because its legs have tiny hair like structures called setae. When a spider walks on a sticky thread, the setae gets stuck onto the thread. Helping the spider to get grip and support to walk. Now as the point of contact is very less,
the glue has very less surface area to stick. Hence, the spider easily pulls its legs without sticking. Besides this, research suggests that certain spider’s legs are covered with special chemical coating. This coating also helps the legs from sticking to the glue. What is a tardigrade? A tardigrade is one of the smallest animals. It can grow only about 1 millimeter or less in length. However, it is the toughest animal in the
whole world. It cannot be tougher than me. Alright. Now listen. Scientists say that tardigrades can survive in extremely inhospitable environments. But how? When the environment is inhospitable, the tardigrades enter a state called cryptobiosis. In cryptobiosis, they curl up into a ball
like structure called tun. All their metabolic processes almost stop. In this state, tardigrades can survive in
about minus 459 degrees Fahrenheit. And even in about 300 degrees Fahrenheit. They can live deep in the oceans and withstand the huge pressure of water. They can even survive in the vacuum of space and can withstand radiation. Later, when the conditions are stable, they again come back to their normal form.

David Frank

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86 COMMENTS

  1. It's AumSum Time Posted on May 6, 2019 at 11:00 am

    Did you like the Video??

    Watch More Videos : https://www.youtube.com/playlist?list=PLRSIe0MUxDnc8XTEEimvXmuPAMc9cpBIA

    Reply
  2. Banaji lal Kushwaha Posted on May 6, 2019 at 11:02 am

    Awesome video

    Reply
  3. Banaji lal Kushwaha Posted on May 6, 2019 at 11:02 am

    That's good and funny

    Reply
  4. ToastyCat Toast Posted on May 6, 2019 at 11:02 am

    Thank you for the education I love you aumsum

    Reply
  5. DinoEscaper Posted on May 6, 2019 at 11:02 am

    FIRST

    to like my own comment

    Reply
  6. Green tie mendoza Posted on May 6, 2019 at 11:03 am

    Hello aumsum time

    Reply
  7. k.Sameer Nandan Posted on May 6, 2019 at 11:03 am

    2nd comment

    Reply
  8. TheGamerUltimate 7908 Posted on May 6, 2019 at 11:03 am

    Why that thumbnail

    Reply
  9. Mr. Motivation Posted on May 6, 2019 at 11:03 am

    12 th!!!!!!!!!!!

    Reply
  10. Aben4yut Galaxy Posted on May 6, 2019 at 11:03 am

    I love ur vids

    Reply
  11. Clash Rewind Posted on May 6, 2019 at 11:04 am

    15th view,10th like, 11th Comment

    Reply
  12. Prasiprathi Dahagam Posted on May 6, 2019 at 11:04 am

    I love this channel..it taught me so many new things..Thank you for uploading this video..

    Reply
  13. Just Human Posted on May 6, 2019 at 11:04 am

    All are first , so i am second!! ๐Ÿ˜๐Ÿ˜

    Reply
  14. sofia evie Posted on May 6, 2019 at 11:04 am

    I am early yaas

    Reply
  15. 2020 Lollipop Christmas Posted on May 6, 2019 at 11:04 am

    Seventh

    Reply
  16. Shrenik Srini Posted on May 6, 2019 at 11:04 am

    i have learnt alot from videos thank you

    Reply
  17. SRIJAN limbu Posted on May 6, 2019 at 11:05 am

    ITS AUMSUM TOME

    Reply
  18. vandana Gupta Posted on May 6, 2019 at 11:06 am

    Why we love junk food?????????

    Reply
  19. Abir Alvi Posted on May 6, 2019 at 11:07 am

    Clickbaited..

    Reply
  20. Chris Uyanwune Posted on May 6, 2019 at 11:09 am

    who ever likes aumsum time give this comment a like bc i love it too

    Reply
  21. Genius Facts Posted on May 6, 2019 at 11:10 am

    I am first viewer!!! ๐Ÿ˜Ž๐Ÿ˜‰๐Ÿ˜ฏ๐Ÿ˜ฎ๐Ÿ˜Š๐Ÿ˜ƒ

    Reply
  22. Sala deva manikanta Posted on May 6, 2019 at 11:11 am

    Sir plss send videos that make us learn chemistry easy

    Reply
  23. Mikaela Venus Posted on May 6, 2019 at 11:11 am

    I love u Aumsum u helped so many students
    Watching at Philippines

    Reply
  24. Pranav Anil Posted on May 6, 2019 at 11:12 am

    Tennis balls are red too

    Reply
  25. Kenneth Club Posted on May 6, 2019 at 11:16 am

    Cause of this my classmate call me a teacher

    Reply
  26. FILIPINA in JAPAN Posted on May 6, 2019 at 11:18 am

    the way he said "STICKY SYRUP" is so satisfying @1:30

    Reply
  27. Dhyey Tandel Posted on May 6, 2019 at 11:20 am

    Hey aumsum I have a question for you plz take in video what if you have 1billion dollars and you have to spend it in 1 day if not you have to spend your whole life in jail so think and answer and if you spent 1billion you will get another 1billion so how will you spend 1billion

    Reply
  28. N.n.e Khalil Posted on May 6, 2019 at 11:21 am

    Really good

    Reply
  29. Fie Jensen Posted on May 6, 2019 at 11:24 am

    Lol i liked the video and i liked it as number 69

    Reply
  30. Ishu Verma Posted on May 6, 2019 at 11:26 am

    Please make videos only between 3 and 5minutes.. Not more than 5min.. Its my humble request

    Reply
  31. josue alimorong Posted on May 6, 2019 at 11:34 am

    Where is the Early Squad at?? Like!!!

    Reply
  32. Vaishali Shah Posted on May 6, 2019 at 11:39 am

    Wow interesting!!

    Reply
  33. Game Center Posted on May 6, 2019 at 11:40 am

    You Upload this Video Today!!!

    Reply
  34. hassan jamil Posted on May 6, 2019 at 11:41 am

    Please make videos on mathematics

    Reply
  35. SADIK SAVER Posted on May 6, 2019 at 11:42 am

    Hey aumsum! Nice video, keep making such videos on such topics. I am very satisfy from you and a big of yours. Can you give me a heart. Love from SADIKsaver from India.

    Reply
  36. Pranesh's Performance Posted on May 6, 2019 at 11:51 am

    Nice video

    Reply
  37. RAGNAR LOTHBROK Posted on May 6, 2019 at 11:58 am

    YELLOW???? TENNIS BALLS ARE GREEN NOT YELLOW.

    Reply
  38. KRYPTONITE TEC Posted on May 6, 2019 at 12:11 pm

    After a long time

    Reply
  39. Sadhana Pagar Posted on May 6, 2019 at 12:11 pm

    Do you know that I am a tennis player and AumSum thanks for telling me about the tennis ball .

    Reply
  40. Lisa Rollins Posted on May 6, 2019 at 12:13 pm

    NOOOOOOOO! I WAS UP AN HOUR AGO I JUST WASNT USING PC NOOOOOOOOOO 10 likes and ill use aumsum time pc more ๐Ÿ˜€

    Reply
  41. Prateek Kumar Posted on May 6, 2019 at 12:15 pm

    Where is the video on junk food..

    Reply
  42. Aoun Muhammad Posted on May 6, 2019 at 12:17 pm

    What do u think the smart aumsum is dumb i hate him

    Reply
  43. Bendy_Is_Scary : Minecraft , Reactions and More!!! Posted on May 6, 2019 at 12:19 pm

    64th

    Reply
  44. Mukesh Prasad Posted on May 6, 2019 at 12:53 pm

    AumSum is Awesome

    Reply
  45. Kyle Ulysses Omosura Posted on May 6, 2019 at 1:01 pm

    This is so educational๐Ÿ˜Š๐Ÿ˜Š๐Ÿ˜Š

    Reply
  46. Irwin Trestiza Posted on May 6, 2019 at 1:10 pm

    5:03 did anyone notice the sun just disappeared.. :/

    Reply
  47. Ruhaan raza Posted on May 6, 2019 at 1:13 pm

    Happy to see u dumb amsum ๐Ÿ˜‚

    Reply
  48. Poh Poh Posted on May 6, 2019 at 1:16 pm

    Plz do what happens when you cut open a rock

    Reply
  49. Demir Tekayak Posted on May 6, 2019 at 1:50 pm

    Can you make a video about the food chain?

    Reply
  50. Ali Sher Posted on May 6, 2019 at 1:53 pm

    Wow obstacle for air๐Ÿ˜‚๐Ÿ˜‚

    Reply
  51. Yash Aggarwal Posted on May 6, 2019 at 3:27 pm

    Why you put other thumbnail at first

    Reply
  52. SAGAR AHER Posted on May 6, 2019 at 4:03 pm

    Nice video…….

    Reply
  53. Priyanshu Jain Posted on May 6, 2019 at 4:34 pm

    I really like your videos but the main problem is sometimes it has repeated topics so u should make 4-5mins of videos and add 3 or more topics.

    Reply
  54. Temp Student Posted on May 6, 2019 at 4:47 pm

    yyyyyeeeeeeeeeeessssssssss
    soooooooooooo goooooooooooooood

    Reply
  55. himanshi sharma Posted on May 6, 2019 at 5:43 pm

    Pls make a video on global warming and how to stop it plz……….#onevideoforearth ๐Ÿ™๐Ÿ™๐Ÿ™

    Reply
  56. Emilio Run Posted on May 6, 2019 at 7:56 pm

    Please bring back smart aum sum please

    Reply
  57. Luchie Papalid Posted on May 7, 2019 at 12:12 am

    Why is bowling ball is hard and heavy

    Reply
  58. jim burke Posted on May 7, 2019 at 1:13 am

    What is the weather in summer

    Reply
  59. Dilip Kumar Posted on May 7, 2019 at 1:13 am

    Why do muscles pain after a lot of hard work out please make a vedio on this

    Reply
  60. Brainy MAN Posted on May 7, 2019 at 3:32 am

    repeated segments.
    but the first video was good

    Reply
  61. Puja Gopi Posted on May 7, 2019 at 4:55 am

    How dose makeup remover works?

    Reply
  62. Hrishi Patil Posted on May 7, 2019 at 7:02 am

    I've never seen tardigrade are they like worms

    Reply
  63. PRANJAL JAIN Posted on May 7, 2019 at 10:37 am

    Never thought such simple thing could also have physics in that ๐Ÿ˜‚

    Reply
  64. SUHAIL SAMEERUDDIN Posted on May 7, 2019 at 12:29 pm

    Helps in dynamic lift…

    Reply
  65. jennylyn Untalan Posted on May 7, 2019 at 4:28 pm

    5:04 Sun disappears :0

    Reply
  66. Mr Cosmic Gamer Posted on May 7, 2019 at 5:03 pm

    The channel name was ' the aumsum time ' or ' smart learning for all' ?????

    Reply
  67. Rakhi Sharma Posted on May 7, 2019 at 5:07 pm

    Your videos are the best ๐Ÿ˜„

    Reply
  68. Jintong Tang Posted on May 7, 2019 at 10:37 pm

    Nice up move with your videos!

    Reply
  69. Anil Sharma Posted on May 8, 2019 at 4:21 pm

    Known I know why I can spin tennis bowl in gully cricket

    Reply
  70. spicy_gamer26 Posted on June 11, 2019 at 9:20 am

    Tennis balls are yellow because Batmanโ€™s favourite colour is yellow!

    Reply
  71. Derry Mcrae Posted on June 19, 2019 at 1:38 am

    Did you know that reading sucks

    Reply
  72. ใƒ„RLTOROBLOXTOGD Posted on June 24, 2019 at 3:49 am

    I have never seen a pop rock

    Reply
  73. Mohammed Elhaj Posted on June 29, 2019 at 5:25 am

    Aumsum is the show off master

    Reply
  74. NATURAL GAMER Posted on July 4, 2019 at 9:58 am

    How cute elephant is

    Reply
  75. rohini siva Posted on July 21, 2019 at 12:53 pm

    lot of repeated video s are there..pls avoid it…but I like Ur video s

    Reply
  76. miku hatsune Posted on July 26, 2019 at 2:15 am

    WHAT DO EVEN POP ROCKS TASTE LIKE?

    Reply
  77. varna varna Posted on October 3, 2019 at 1:46 pm

    Are ghost are really???

    Reply
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