How to save 51 billion lives for 68 cents with simple Engineering

Mark Rober

12 млн переглядів1 273

    Using the power of engineering and brilliant inventions to save lives!!! Great times collab-ing with Bill and Melinda Gates! You should check out the Gates Annual Letter here:
    Pre-order a paper microscope here-
    Read the published paper on the paper centrifuge, its cool-

    0:15- The Ocean- Andrew Applepie-
    2:18- Sweet Tomorrow- Andrew Applepie-
    4:21- Berlin- Andrew Applepie-
    7:54- Special song written just for me- Lincoln Hoppe,

    Summary: I met with Manu Prakash from Stanford to talk about 2 of his labs' inventions the Foldscope and the Paperfuge. Combined these cost only 68 cents and they can be used to diagnose Malaria. Both of these are examples not only of simple, brilliant design, but of how engineering is used to make a positive dent in the world.

    I make videos like this once a month all year long while supplies last:
    FACEBOOK: MarkRoberUKup
    TWITTER: #!/MarkRober
    INSTAGRAM: markrober

    Опубліковано 3 роки тому


    1. Graham Carron

      i don't get why there is so many dislikes

    2. Friendly Neighbourhood Spidey

      Things under the microscope are super disgusting yet somehow beautiful

    3. Matthew Cabrera

      *Carefully now, he’s a hero*.

    4. Angry Gamerz

      That's called jugadd

    5. TDTRules

      When Mark makes a vid to save more people than there are

    6. John

      Teberculosis (Tb) is another curable disease that kills millions of people annually... checkout the work at the University of Notre Dame trying to save people for just a few cents. By the way, I think these same Stanford engineers inspired a group of Stanford MBAs to develop kind of thermal blanket with wax padding that warms in the sun and retains heat for hours... which is a highly effective substitute for NICU type treatment on premature babies. It has saved thousands of children for just $50 per blanket (one needed in a large village for example), and is reusable and very durable.

    7. Levi Lenkens

      51 billion lives I don't think that math checks out

      1. Anant Agnihotri

        51 billion is the number that could die in the future

    8. NeonPROD Official

      Plus its a win win for the people who want a cheap microscope!

    9. shadow ryder

      Cap there's only 7 billion peoole

    10. Prakhar Baranwal

      Making India proud again ❤️🇮🇳❤️

    11. Ashley Alian

      How are you friends with somw of the best people

    12. Darryl Ross Gungob

      We can cure covid yeay

    13. Zaimon Abraham

      Bruh thats more people than on earth

    14. Blazer Wolf

      51 billion I..I...I thought their was 7 billion people... You no telling us something mark

    15. Rod R

      Crazy!!!! Major life changing sh*t can happen for the world???

    16. Tey Yi Xiang

      When you see the title is 51 billion Cool When you realise there's only 7 billion people on earth Hmmmmmm

    17. Franky is busy

      *Microbial roomba* I want one of those

    18. amanda c.

      The deranged witch surgically trust because distributor connolly glow excluding a labored mosque. daily, wanting ghost

    19. Mili The Meow Boi

      Manu is my dads roommate and he has even visited my house!, i still cant believe it

    20. The Jooger Long


    21. Victor Sicairos

      Really life hero!

    22. wa1w

      Super heroes finally meet!! Woot!

    23. Kendrick Fisher

      So you may not have enough money for chikin nugget, but you could save a life

    24. Caleb Hollen

      Bill Gates wants the population of the world to drop. Why heal people?

    25. 5p1cy ch1p5

      so there are 51 million hun\mans on earth

    26. just some one

      51b i thought it was 8b? I might be wrong 😐

    27. Nathan Widmeyer

      At 7:44 there is a creepy girl staring at them

    28. Abby L

      The lonely deodorant obviously chase because element chemically concern absent a thoughtful angora. succinct, round iran

      1. Maximo MacLean

        What did you have a stroke when writing this

    29. Vivek Mittal

      I don't know why but I feel good why I see the ideas used by these people.

    30. The dwarf The first

      There are only 7 billion

      1. The dwarf The first


    31. Randomized Channel

      Mark teaches better than my teacher.

    32. Mahooosaur

      745k like

    33. Jellygta111

      Title looks bad no joke

    34. Quite One

      saves 51B lives me: there are only 8B people

    35. Mary Samreth

      The clammy middle impressively tease because forehead phenotypically allow for a uninterested cycle. cooperative, useful cd

    36. Radhika Ajmera

      I am also from India

    37. merlion04

      He is smart Manu is a hero



    39. Didi Casimel

      Yo pensé que solo había 7 billion es de personas pero al parecer hay 51 billion

    40. Ryan Ellett

      You were *this* close. *1cent

    41. JerPvP Productions

      Isnt there 7billion people alive

    42. Elvira Jackson

      The worried porcupine immuhistochemically crash because stamp gratifyingly film plus a super liver. deeply, beneficial persian

    43. Laila Frank-Gore Year 8

      OK i just made one i bought glass beads and IT WORKS i found out RIGHT NOW i spent hours on in today and waited forever for the delivery i also tried seperating it with a paperfuge an it also WORKED IM SO GASED I SAW MY BLOOD CELLS FOR LIKE £5

      1. Mohammed Mogis Raza Khan

        Wow dude ...but it's saying 22 Dollars on website 😭

    44. D Donawan

      How did you capture the fly birth when it’s in that slide the fly would be crushed

    45. PandaGirl

      2:03 - 2:08 THATS hilarious

    46. Alex Zheng

      There is only 8 billion people on earth

    47. Matthew Lanceley

      Who tf dislikes this

    48. Kermit

      Mr.Krabs sold spongebob’s soul for 68 cents to save 51 billion lives

    49. CoNtAnT

      Love from India 😁

    50. Gerard Ligonde

      The brawny prison molecularly impress because plywood conservatively employ for a absorbing blowgun. deserted, acid napkin

    51. MaxBax Pamparapa

      but there is only 7 billion on this planet, not 51 billion

      1. luis talastas

        its also for are descendants, but idk why he said 50b

    52. kitten klcat1012321

      home we can do the same with covid XD

    53. rayen bouj

      ❤️ ❤️ ❤️

    54. ok _boomer


    55. ninja roc

      68 aww

    56. Aditya Kothiyal

      brain drain from india as always

    57. GolGappe Kids

      wow i'm 9 years old and i'm amazed 😀😀😀😀

    58. Arelfox

      51 that right?

    59. Nguyenhoang Han


    60. ############### s

      why would anybody dislike this video?

    61. knowledge tech

      INDIA rocks everybody SHOCKS

    62. jt playz roblox

      microbial roomba.... im dead-

    63. Twyla Beachy

      *John 3:16* *"For God so loved the world that He gave His one and only Son, that whoever believes in Him, will not perish, but have eternal life. "*

    64. David Kim

      Really shows how effective an individual can be through innovation.

    65. Rick Smith, J.R.


    66. Alpha Gaming

      I also live in india 🇮🇳 nice

    67. kjacX


    68. Ritwik Sushil

      man when ever u said poorest i didnt like it

      1. RoBoDuDe


    69. gallimead

      BigPharma: "What new fangled, do-hickey have you got there boys??" Manu: "We've created a way to save 51 billion lives, with little cost, it's going to be revolutionary" BigPharma: "... Cool story.. say why don't we offer $10million in exchange for your research, thesis, prototypes, and patents??" Manu: "And.. You'll go ahead and save those lives, for pennies on the dollar??" BigPharma: "Uh... yeah.. that's what we'll do.."

    70. Simone Taylor

      He’s saving 51 billion lives isn’t there only like 47 billion people on earth

      1. ThiccDuck 95


    71. Ochako SIMP

      Wait aren’t there only 7 billion people in the world?

      1. ThiccDuck 95

        i think he means not us, he means microscopic lives i think

      2. ThiccDuck 95

        7.8 c;

    72. — KING BR3ADBIN —

      Why can’t all of these billionaires and Tories contribute to projects like Manu’s.

    73. Frondoso 330 White


    74. Perfect Pineapple

      51 billion lives? My internet is broken because it only says there are 7 billion people.

    75. LuckyShotBot

      I am hella confused how it's saving 51 billion people when there is only 8 billion people on the earth

    76. MrKaaBoom

      4:04 How Many Times Did He Say, "Yeah" ?

    77. Flying Toast22

      but theres only 7million people in the world...

    78. Peter Mallia

      Those inventions are absolutely amazing, I'm rarely surprised by anything anymore but, that's real enginuity, real intellegence mate, I love it, something that actually benefits everyone across the world.

    79. Gowtham Karthikeyan

      but there's only 7.8 billion peoples in the world

    80. Anubis

      Bharat matha ki jai.... Manu

    81. Furiousgamer06

      who else is doing this as a science fair project

    82. Evelyn Ho

      Wow...thanks, no regrets subscribing to your channel...😊👍

    83. SANJ U


    84. Rose Tran

      How incredibly amazing.

    85. Uthman Baksh

      Not all heroes wear capes. Some make lab equipment for the masses.

    86. Bob

      So, I've got 50 cents. How do i make this microscope?

    87. The NPC

      But there’s only 7.5 billion people mark

    88. Paul Minter

      4:18 Listen to Manu saying "analogy" in 0.5 speed))

      1. Paul Minter

        @Joshua pere that's for if smb doesn't get it at first time

      2. Joshua pere

        What's the difference as compared to normal speed?

    89. Y J


    90. David Crox

      my dude saving more lives than people on earth

    91. Trannguyen Phuongvy

      Aaaaaaaaaahhhhh .

    92. IRONMAN BG

      i think after 4 years i wont need to pre order this

    93. MxsticSam

      I loved the part where u could see the blood cells in Mark's blood

    94. maks šink

      51 billion bruh

    95. Salvatore De Lille Orlansino

      but how do the malaria cells look like

    96. Sharleen Listemann

      The angry dead july continue because crocodile acceptably hand under a five pizza. eager, tidy sphere

    97. TeeOneZee

      did you just say Maggots are adorable?!?

    98. ;0;

      Who dislikes this stuff?

      1. Sandro Dugladze

        Religious crazies

    99. Elijah Diltz

      51 *BILLION* eh?

    100. AndrisXT Homka

      How to save 51 billion lives! On the entire planet only live like 7 or 8 billion people