@reason4math: The elegant method developed by Lui Hui 17 centuries ago in his book The Nine Chapters on the Mathematical Art to measure the distance and height of an island cliff at sea. #mathematics #math #maths #mathtrick #geometry #stem #STEMTok #liuhui #surveying #calculation #mathtok

Beau Janzen
Beau Janzen
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Saturday 18 January 2025 00:30:00 GMT
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jordan.minor7flat5
Jordan B. Lombardo :
I came up with this
2025-01-18 05:32:52
116
parrot360_365
the patriot 7070 :
but with the angle and the distance between the base of the cliff and the point of the angle you can know the height of the cliff . no need for the second triangle
2025-01-19 11:05:52
5
titos_2468
TitoS :
this was 17 centuries ago??? damn
2025-01-18 00:52:56
430
a_wallii
a_walli :
It’s great to learn about important historical figures from places other than Europe
2025-01-18 22:27:09
119
shartiella
אלה שרתיאל :
you don't HAVE to make your videos this beautiful, but man... you do it anyway!
2025-01-23 21:14:49
34
diamomm
diamom :
Your videos got me so interested in math. The visuals, the sound effects, the neat parts when all the lines and stuff aligned perfectly because of some principal. You always deserved way more views.
2025-01-18 18:12:35
8
novaa6120
Galaxy :
Old method of counting pixels
2025-01-18 14:32:42
97
m.abdl92
M'🇩🇿 :
this is Thales' Theorem
2025-12-04 16:04:12
2
bobbymuessig
bobbym414🇺🇸 :
only on a flat earth 🙂‍↕️💪🏼🔥
2025-07-29 22:11:24
0
joyfulmathswithruth
Ruth - Home Ed Maths :
so simple and so effective
2025-01-20 07:02:43
5
oddlysatisfyingmath
Oddly Satisfying Math :
Unbelievably cool. Always wondered how these cliffs/mtns used to be measured
2025-01-27 18:45:31
3
andreastangen
Faruk Ahmet :
How do you align the top of the stick with the top of the cliff to find the right spot on the ground though? Sounds like it could only produce a *very* rough estimate.
2025-01-19 10:02:39
5
adirjaja
Tron :
17 century ago. around 300AD?
2025-01-19 05:18:01
27
shnitzelwayn
sevo :
oh my poor brain
2025-01-28 15:11:19
2
jetzoo_
jetzoo :
genius
2025-01-20 01:18:49
3
formeloza.bhong
Formeloza Bhong :
Genius and smart,, I guess he is,,
2025-01-18 13:07:41
5
seerystal
☢️ Steminist ☢️ :
Basically, one part of trigonometry. Cool
2025-01-18 16:58:07
4
kimjongboom47
KIM JONG BOOM :
i used to do these math calculations in highschool...loved them💕
2025-01-18 04:54:13
10
santiagojoseveron
Santiago Verón :
this was awesome
2025-01-18 02:11:22
2
zenotocracy
Zenotocracy :
Elegant!
2025-01-25 09:07:51
1
sworbells.path
Sworbell :
ty
2025-01-20 02:51:05
1
jhine115
Maam Jhin :
Thanks for sharing
2025-01-24 12:18:25
1
sexyamongusfarts
tiny toe tickler :
ly bye 😔
2025-01-19 02:53:19
1
drrune
Dr. Rune :
Thank you for this amazing data!
2025-01-18 03:40:39
3
drieskabol
Andries du Toit :
Clever
2025-01-19 20:26:30
1
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