Sundial Outside of Dallas Hall - How Does a Sundial Work?

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  • เผยแพร่เมื่อ 12 ต.ค. 2024
  • This video is suited for 5th-12th grade students.
    Join Dr. Glen Whitney and talkSTEM as we explore STEM concepts on the SMU campus.
    1918 Memorial Sundial - How do you set the time on a sundial?
    TEKS; Mathematical Process Standards (K-12): 1A, 1B, 1C, 1D, 1F, 1G, 4.6A, 4.7C
    Science Standards (K-12): Astronomy 05A 08B
    Common Core Math Standards (CCSS):Coming Soon
    You might be asking the question, ‘you can play with numbers?’ Of course you can! Play away! Mathematics helps us to figure out the world around us. We cannot fly, but we have math to help us!
    We hope you enjoy this video and that you can find the STEM around your classroom, neighborhood, home and in everything! Find out more about us on our website: talkstem.org/

ความคิดเห็น • 77

  • @reeedfish
    @reeedfish 2 ปีที่แล้ว +11

    Great job explaining something that seems very difficult to explain.

  • @mlungisimokhethi6958
    @mlungisimokhethi6958 3 ปีที่แล้ว +12

    This is amazing!!! I'm going to build this down here in South Africa, Cape Town as soon as I get off this high.

    • @TorrAlstad
      @TorrAlstad 3 ปีที่แล้ว +1

      Any updates on this? How's your sundial working?

    • @mlungisimokhethi6958
      @mlungisimokhethi6958 3 ปีที่แล้ว +2

      It's winter right now. We have very little sunlight, and tons of rain.

    • @TorrAlstad
      @TorrAlstad 3 ปีที่แล้ว +1

      @@mlungisimokhethi6958 Looking forward to the update in a few months when there's more light

    • @josephlittle1500
      @josephlittle1500 2 ปีที่แล้ว

      Update?

    • @BuffDaddySmoove
      @BuffDaddySmoove 2 ปีที่แล้ว

      ​@@mlungisimokhethi6958 how goes it?

  • @zdspider6778
    @zdspider6778 2 ปีที่แล้ว

    What if you're at the North Pole? Which way do you rotate it?
    What if you're in the Southern Hemisphere? What's the angle then? Negative angle?

  • @saltyapostle44
    @saltyapostle44 2 ปีที่แล้ว +2

    Awesome - I've always wondered about this.

  • @PauliePizza
    @PauliePizza ปีที่แล้ว

    Thank you! I'm lat. 038 degrees. Virginia!!

  • @monolith626
    @monolith626 3 ปีที่แล้ว +12

    Actually very interesting.

  • @JoeSavySC2
    @JoeSavySC2 11 หลายเดือนก่อน

    Good job explaining this.

  • @IDTV66
    @IDTV66 2 ปีที่แล้ว +1

    Imagine the fume from the flat earthers 🤣

  • @andrewpanrucker
    @andrewpanrucker 3 ปีที่แล้ว +4

    So funny, the sun moves around us like a time piece

    • @fakiirification
      @fakiirification 3 ปีที่แล้ว +1

      close. The earth rotates on a predictable period that has been broken down into exactly 24 hours (give or take, it slows an imperceptible bit with each passing day, but it would take thousands of years for us to notice). Our entire concept of time is based on this periodic day cycle.

  • @LucreciaAnzana
    @LucreciaAnzana 3 ปีที่แล้ว +3

    Good video. Short and good explanation. Used it to explain the angle of the stylus to my son that wanted to build a sundial for school.

  • @amistry605
    @amistry605 2 ปีที่แล้ว

    So they have to point north?

  • @njd2342
    @njd2342 2 ปีที่แล้ว

    The beefeater is not standing on London but perhaps in Germany?

  • @mattferrigno9750
    @mattferrigno9750 3 ปีที่แล้ว +17

    This sounds very complicated for someone 3000 years ago to build

    • @eman10two
      @eman10two 2 ปีที่แล้ว +1

      Maybe humans were smarter back then. Just a thought

    • @tobi_uchiha69
      @tobi_uchiha69 ปีที่แล้ว

      not 3000 maybe like 1000 yr ago bcs muslims made it and the muslims started at 600

  • @dawnarmstrong4441
    @dawnarmstrong4441 2 ปีที่แล้ว

    That was a great video. Thank you!

  • @nithin3629
    @nithin3629 2 ปีที่แล้ว

    It is very helpful for us

  • @pacchutubu
    @pacchutubu 2 ปีที่แล้ว

    thanks, i always had doubt on how the tilt of earth's axis is accounted. This video cleared it

  • @sudhiraperera130
    @sudhiraperera130 3 ปีที่แล้ว +2

    Very interesting and important 😁😄😃😀

  • @saritachhikara9942
    @saritachhikara9942 2 ปีที่แล้ว

    Very nice

  • @سيدةملعقة-س5ث
    @سيدةملعقة-س5ث 2 ปีที่แล้ว

    Thanks

  • @natalindiancongress886
    @natalindiancongress886 2 ปีที่แล้ว

    @ Vineel Chaitanya @ Sudeeptha Mondal : Hi , 1) On 18 th May 2022 , around 10 :50 A.M , Naryanapuram Colony , Flat No:219 khe , North side Door way khe pass hue step Five feet kha hogaa , Terrace par Cloths dry karne , keliye hue wire kho tie karne keliye hue Iron Rod of side house building which is towards New Delhi side for flat No : 219 , kho bhi Cloth drying Iron Rods hei. 2) Time 10 : 55 A.M IST mein Flat No : 219 North Door Way ke pass Floor par two shadows of Cloth drying Iron Rods kho dekha tha . a) One Shadow is from side by North Side House buiding khe cloth drying Iron Rod khaa tha , Shadow Centre of the North Door Step of Flat No : 219 khe Floor par padaa tha can see the full length of the rod shadow at the centre of the step. b) second shadow is from Flat no : 219 terrace par hue shadow , at North Door way step of Flat No : 219 , the shadow is not full in length , is not at the center of the step but towards Mumbai side in vaasthu east - west direction. 25% towards Mumbai side the shadow of Cloth drying Iron Rod , 75 % towards Puri - Konark side of iron rod of cloth drying , ani observed Sir. - Thankyou.

  • @Brother_TD
    @Brother_TD 3 ปีที่แล้ว

    32° in Dallas, TX

  • @rylan5040
    @rylan5040 ปีที่แล้ว

    Great video to show me how smart I’m not 😂.

  • @My_Type101
    @My_Type101 2 ปีที่แล้ว +1

    Wow!!!!

  • @aries6809
    @aries6809 3 ปีที่แล้ว

    Sooo interesting thank you.

  • @equteachme
    @equteachme ปีที่แล้ว

    So If the earth were as flat as some suggest civilization would have only needed to create sundials with a style set at one angle?

  • @rousefire
    @rousefire ปีที่แล้ว

    Settle a disagreement between my wife and I . I say when set up properly a sundial will always show the solar noon correct . My wife , as always , disagrees .

  • @michaelholness1736
    @michaelholness1736 3 ปีที่แล้ว

    ANALOG CLOCK [6-UP and 12 DOWN]

  • @connorshaw-case6030
    @connorshaw-case6030 2 ปีที่แล้ว

    this guys adorable

  • @rasheedlewis1
    @rasheedlewis1 ปีที่แล้ว +2

    This guy is not speaking in straight lines. I can’t follow his line of reasoning

  • @alexx_c10
    @alexx_c10 3 ปีที่แล้ว +2

    wow

  • @BelfastYT
    @BelfastYT 2 ปีที่แล้ว

    seinfield vibes

  • @itsnotearthly
    @itsnotearthly 3 ปีที่แล้ว +7

    Only works on a flat earth

    • @havefaith4382
      @havefaith4382 2 ปีที่แล้ว +1

      incorrect

    • @thebeast5215
      @thebeast5215 2 ปีที่แล้ว +2

      Haha very funny

    • @itsnotearthly
      @itsnotearthly 2 ปีที่แล้ว

      @@thebeast5215 you really believe the earth spins in 4 motions?

  • @harveypost7799
    @harveypost7799 2 ปีที่แล้ว

    I realize college but any straight rod will do...a room without windows..

  • @terrellmiller4768
    @terrellmiller4768 3 ปีที่แล้ว +2

    So how does the people of the bottom of the earth 🌎 point the dial❓ should they put it in the dirt upside down 🤷🏾‍♂️

    • @Van-Leo
      @Van-Leo 3 ปีที่แล้ว +2

      there really is no top or bottom. the north and south poles would have their dial the same ways since up and down was only decided on when maps were standardized. some countries actually use their maps upside down or with Eurasia and Oceana on the left and the Americas on the right. the dial would just have to be pointed in the opposite direction, not upside down, to cast the correct shadow for the time.

    • @dwiiskincare1623
      @dwiiskincare1623 2 ปีที่แล้ว +2

      Earth is flat

    • @havefaith4382
      @havefaith4382 2 ปีที่แล้ว +1

      @@dwiiskincare1623 incorrect

    • @havefaith4382
      @havefaith4382 2 ปีที่แล้ว +1

      you would just point it straight up like the north pole lol its not hard man cmon

  • @who-lo-lolee-oh1079
    @who-lo-lolee-oh1079 2 ปีที่แล้ว

    Great job proving the earth is flat. Although I'm sure that was not your intention.

  • @victorneely7964
    @victorneely7964 2 ปีที่แล้ว +6

    Man oh man that sounds really confusing. Sure works a whole lot easier with a flat earth explanation. I wonder why? ;-)

    • @naturenumber5886
      @naturenumber5886 2 ปีที่แล้ว +1

      It's not that confusing at all, is there some question about this model that you have? The flat earth model does not account for the apparent movement of the sun. In fact, the flat earth model doesn't account for very many phenomena at all.

    • @pentelegomenon1175
      @pentelegomenon1175 2 ปีที่แล้ว +1

      Doesn't this prove that the earth is curved, though? Wouldn't the observations be different otherwise?

    • @victorneely7964
      @victorneely7964 2 ปีที่แล้ว

      It’s very confusing because we know that it doesn’t work on a globe. The sun moves over our flat plain in a circle causing the shadows. With LIES explanations brome convoluted and confusing . TRUTH has nothing to hide snd is very EASY to understand.

    • @drivventodrumm1
      @drivventodrumm1 ปีที่แล้ว +1

      It’s nice to see a critical thinker. Earth is flat and stationary.

    • @victorneely7964
      @victorneely7964 ปีที่แล้ว

      @@drivventodrumm1 It's even nicer to know there are other people SEEING the TRUTH. Once more of us wake up we can take back our world from these people who have been controlling us for years.

  • @quasiimotto855
    @quasiimotto855 3 ปีที่แล้ว +3

    The sun dial only works on a flat earth!!!

  • @namratabhandari9939
    @namratabhandari9939 3 ปีที่แล้ว +3

    😴 😵

  • @xenegerardoouano5934
    @xenegerardoouano5934 ปีที่แล้ว

    Thanks I need this for survival

  • @natalindiancongress886
    @natalindiancongress886 2 ปีที่แล้ว

    @ Vineel Chaitanya @ Sudeeptha Mondal : Hi , 1) On 18 th May 2022 , around 10 :50 A.M , Naryanapuram Colony , Flat No:219 khe , North side Door way khe pass hue step Fvie feet kha hogaa , Terrace par Cloths dry karne , keliye hue wire kho tie karne keliye hue Iron Rod of side house building which is towards New Delhi side for flat No : 219 , kho bhi Cloth drying Iron Rods hei. 2) Time 10 :00 A.m IST mein Flat No : 219 North Door Way ke pass Floor par two shadows of Cloth drying Iron Rods kho dekha tha . a) One Shadow is from side by North Side House buiding khe cloth drying Iron Rod khaa tha , Shadow Centre of the North Door Step of Flat No :219 khe Floor par padaa tha can see the full length of the rod shadow at the centre of the step. b) second shadow is from Flat no :219 terrace par hue shadow , at North Door way step of Flat No:219 , the shadow is not full in length , is not at the center of the step but towards Mumbai side in vaasthu east - west direction. 25% towrds Mumbai side the shadow of Cloth drying Iron Rod , 75 % towards Puri - Konark side of iron rod of cloth drying , ani observed Sir. - Thankyou.