Sundial Outside of Dallas Hall - How Does a Sundial Work?
HTML-код
- Опубликовано: 9 апр 2019
- 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/
Great job explaining something that seems very difficult to explain.
Awesome - I've always wondered about this.
This is amazing!!! I'm going to build this down here in South Africa, Cape Town as soon as I get off this high.
Any updates on this? How's your sundial working?
It's winter right now. We have very little sunlight, and tons of rain.
@@mlungisimokhethi6958 Looking forward to the update in a few months when there's more light
Update?
@@mlungisimokhethi6958 how goes it?
That was a great video. Thank you!
Sooo interesting thank you.
Good job explaining this.
It is very helpful for us
Very interesting and important 😁😄😃😀
Very nice
Thanks
Actually very interesting.
Nice vido
Hahaha
Thank you! I'm lat. 038 degrees. Virginia!!
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?
32° in Dallas, TX
So funny, the sun moves around us like a time piece
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.
So they have to point north?
Wow!!!!
thanks, i always had doubt on how the tilt of earth's axis is accounted. This video cleared it
This sounds very complicated for someone 3000 years ago to build
Maybe humans were smarter back then. Just a thought
not 3000 maybe like 1000 yr ago bcs muslims made it and the muslims started at 600
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.
The beefeater is not standing on London but perhaps in Germany?
ANALOG CLOCK [6-UP and 12 DOWN]
this guys adorable
Great video to show me how smart I’m not 😂.
wow
Thanks
seinfield vibes
Imagine the fume from the flat earthers 🤣
@ 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.
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?
I realize college but any straight rod will do...a room without windows..
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 .
Only works on a flat earth
incorrect
Haha very funny
@@thebeast5215 you really believe the earth spins in 4 motions?
So how does the people of the bottom of the earth 🌎 point the dial❓ should they put it in the dirt upside down 🤷🏾♂️
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.
Earth is flat
@@dwiiskincare1623 incorrect
you would just point it straight up like the north pole lol its not hard man cmon
Great job proving the earth is flat. Although I'm sure that was not your intention.
😴 😵
You are not making sense. Sorry but when anyone uses a sundial they hold or place the sundial flat on the ground or a flat table. They do not hold it sideways as you say!! It would not work if you held it sideways to the ground! Why not? Because we are not on a rotating, spinning, shooting ball BUT a flat non rotating plane.
This guy is not speaking in straight lines. I can’t follow his line of reasoning
Man oh man that sounds really confusing. Sure works a whole lot easier with a flat earth explanation. I wonder why? ;-)
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.
Doesn't this prove that the earth is curved, though? Wouldn't the observations be different otherwise?
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.
It’s nice to see a critical thinker. Earth is flat and stationary.
@@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.
Thanks I need this for survival
The sun dial only works on a flat earth!!!
LMFAO no
Complete opposite funnily enough
Bcoz the earth actualy flat.
incorrect
@@dwiiskincare1623 incorrect
@ 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.