Roger Dignard
Roger Dignard
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1920'S BOY SCOUTS OF AMERICA SUNWATCH
A portable sundial available in the 1920's. Its primary market was Boy Scouts. Manufactured by the Ansonia Clock Company of New York. A relatively accurate sundial even today.
มุมมอง: 3 093

วีดีโอ

THE EQUATION OF TIME
มุมมอง 8K4 ปีที่แล้ว
Converting sundial time to clock time. Part 2 - The Equation of Time. It is based upon the obliquity of the earth and the eccentricity of its orbit around the sun. How to apply the Equation of Time to sundials or clocks.
SUNDIALS AND LONGITUDE
มุมมอง 3.7K4 ปีที่แล้ว
Converting sundial time to clock time. Part 1 - Compensating for longitude within a time zone and Daylight Saving Time. How the railroads influenced our modern time keeping.
A HORIZONTAL SUNDIAL
มุมมอง 53K4 ปีที่แล้ว
The type of sundial that everyone will recognize. How it is designed and how it works.
A DIPTYCH SUNDIAL
มุมมอง 9K4 ปีที่แล้ว
Modern interpretation of an 18th century portable sundial. Understanding its design and how it works.
DIRECT EAST & WEST SUNDIALS
มุมมอง 1.8K4 ปีที่แล้ว
How to design, properly align, and read this type of sundial.
SUNDIAL FURNITURE
มุมมอง 3.3K4 ปีที่แล้ว
What is "dial furniture". A guided exploration using a polar sundial. Decorative as well as informative embellishments of a sundial.
A POLAR SUNDIAL
มุมมอง 4.4K4 ปีที่แล้ว
The design and workings of a polar sundial
Introduction to an Equatorial Sundial
มุมมอง 63K4 ปีที่แล้ว
A guided explanation of how the simplest sundial works and how to accurately position it anywhere in the world. Includes explanation of how solar time is converted to clock time.

ความคิดเห็น

  • @dafoex
    @dafoex 14 ชั่วโมงที่ผ่านมา

    I'm aware that Godwin's law says the thread is over when you mention him, however: Hitler Apparently he wanted the world to run on one time zone, German time, and enforced this wherever he invaded. For reasons I'm unsure of, much of Europe stayed on this time zone after the war, and as such sundials in Spain and France are always at least an hour behind clock time. I just thought it might be worth mentioning that Europe's time zones have been complicated for political reasons, also.

  • @keshermedia
    @keshermedia 2 วันที่ผ่านมา

    😳🤔 Excellent presentation, thank you! 👍👍👍

  • @Dopezack
    @Dopezack 10 วันที่ผ่านมา

    Thanks Mate😅❤

  • @GarthVader78
    @GarthVader78 20 วันที่ผ่านมา

    I made a sundial and angled the nomen at 26 degrees (Johannesburg) then pointed it geo north but its a good 45 mins off, why would that be?

  • @michael.forkert
    @michael.forkert 20 วันที่ผ่านมา

    _Oh, yeahhh, the Earth spins at 1,000 miles /h from W to E, and travels around the Sun at 67,000 miles/h, and the “estimated” diameter of the “observable” universe is 93 billion light years long, which equals to 5.5 septillion miles. Who believes firmly in that BShtology is very fond to be bamboozled, that’s for sure._

  • @AUS5113
    @AUS5113 24 วันที่ผ่านมา

    This was a totally great video to watch.

  • @tv175s3
    @tv175s3 หลายเดือนก่อน

    4:27, funny that I watch this video on aug 15

  • @maxmn5821
    @maxmn5821 หลายเดือนก่อน

    Our clocks and gadgets have meanwhile enough computing power to implement an arguably better approach: 12:00 is when the Sun is highest in the sky, everywhere, all year round. (Suggested by Attoparsec)

  • @survivortechharold6575
    @survivortechharold6575 หลายเดือนก่อน

    this little wheel is how simple it is and why people who are said to have had great knowledge of the cosmos certainly did not need to build something like stone henge for a calendar

  • @thehman2007
    @thehman2007 2 หลายเดือนก่อน

    Great video. You explained it in a very concise and easy to follow manner.

  • @thehman2007
    @thehman2007 2 หลายเดือนก่อน

    What a beautiful explanation. Your video is a model that others should emulate. Thanks for taking the time to make it!

  • @sham2723
    @sham2723 2 หลายเดือนก่อน

    thank you!!!!!

  • @goofeybutreal4398
    @goofeybutreal4398 2 หลายเดือนก่อน

    ❤👍🏿

  • @goofeybutreal4398
    @goofeybutreal4398 2 หลายเดือนก่อน

    ❤👍🏿Thank you.

  • @jamesweekes6726
    @jamesweekes6726 2 หลายเดือนก่อน

    Thank you so much for explaining this so clearly.

  • @sriharshini.v-a36
    @sriharshini.v-a36 2 หลายเดือนก่อน

    I can say it's one video with many details, thank you for this video, explained very well!

  • @KawêGonzaga-z8e
    @KawêGonzaga-z8e 3 หลายเดือนก่อน

    Legal

  • @andresdelaplaza
    @andresdelaplaza 3 หลายเดือนก่อน

    Excellent video! Congratulations! Just one thing: longitude correction for time zone is 13.25 minutes. The symbol for minutes of time is "m", the symbol for minutes of arc is " ' ". Two different things. Therefore, on the sundial it should be "-13.25 m". Time => h, m, s. Arcs (sexagesimal) => º ' '' Congratulations for your work!🔭🔭🔭🔭🔭🔭👏👏👏👏👏👏

  • @cholulahotsauce6166
    @cholulahotsauce6166 3 หลายเดือนก่อน

    How substantial is the drift from day to day? How much time would you lose or gain in say a month?

  • @vinaysinghram
    @vinaysinghram 4 หลายเดือนก่อน

    nice video

  • @robertzappe9747
    @robertzappe9747 4 หลายเดือนก่อน

    1minute was not 60 sehende, thats a lie

  • @robertzappe9747
    @robertzappe9747 4 หลายเดือนก่อน

    1 Minute = 100 Sekunden

  • @KipIngram
    @KipIngram 5 หลายเดือนก่อน

    Unfortunately that software you recommended is Windows only. 😞 I just don't understand why the other major operating systems (one of which is FREE) are so neglected. Guess I'll be working it out for myself. Do you happen to know if he accounts for atmospheric refraction? That could become particularly important early and late in the day.

  • @YantoSan-rm2qz
    @YantoSan-rm2qz 6 หลายเดือนก่อน

    Why +60 in sundial

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    This dial, particularly thre 10 hour time frame, is usefulin tracking|keeping a record of growth. T Hen and NOW.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    AT around 11 a.m. I saw the natural progression of 〰️ into pel¡🥫yell0 and whyte (which I hear as/in the frequency of blue) slatted, about 3fw⬆️ (the yell0) and whyte 1½-2fw⬆️, the fabric of time🦭.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    For 4 years I've bin trying to work a compass bcuz I thought their was something wrong with my sense of direction, my meter/weathervane just kept spinning, in search mode. Never Again: Watching that thing spin made the edginess worse, *4lite years⚖️. * 🧤"🍻🏑👮‍♂️ 🚔

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Movement's affiliates are being tracked... More than 1 'response' ie; 2 'responses' were needed for recognition-my own patturn of thinking "a jolt/movement" before that I just watched 👀. 'A Jolt' ie: a highly charged something felt like it was sautered into my right shoulder blade, that I could hear, smell, taste, see, and prevent(once I knoo it was happening) in incrementally (smaller, densor sections. ...in series as well " "(or it would have killed me). 'The jolt' comes from 'outside' of ourselves and is attracted to us. The initial response has to come from within🧲🧲. &had². Aka- We create what we are created with, and by. ²×² "The lil people" enjoy 🏷 🖼ⁿ⁴³🏷

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    (Hmmm "*3/ weeks from??"....) A specific inter/cross section of my right eye, right of what was centor, I watched as the bluublaq wavy, noisy (for lack of a more specific term) 〰️ that I see traveling horizontally, visually intersected at m°152, 1⅓handwidths, *70 yards/(*)(with &Mothman) with vertical〰️ bandwidths. The horizontal went vertical, immediately, with no visible or audio 'snap' other than psychosomatic, ships horns @z°63. Ships 🚢 horns and Wjales(🐳🅰️) @🕳tongue😝. Pressure from the sounds compressed my brain and tongue, nearly(almost) Simultaneously. Simon Says bow down, beothch. "Dj👻+'s" must be on time out. "🔒I think deej was the black cloud that follows"Papa"👳🏿‍♂️👳🏻‍♂️?? And "rains on"...it's his "charlee bRown" imPRESSion. But Puppa, how blaq you've gotten🐺 **☁️🐚at least 2 tales🎆🎇°180*⤴️

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Today is "cfmg.tuesdwy" &"gfht,g &{oregfh,t,g"?

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    You're in petri🧫🥣15 "👶mg, shes not gonna sHu+ tfup now"... Ph🥐€, 1diGm🪙 ❤Mua,l¡++.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    🔒🔒🔒🔒🔒🔒🔒🔒🔒 📯🧪🐚

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    🐌Foss🪟|¡|🐚¡+rifikshunn🛁 🪐👈 ²²²🪤1 MILL'ion ✨️AU (🌾lite y🌽🌽)

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    "§c@rrrr, what's 1 + 9"...Nevermind 🥖-🥖ere ye ⚰️-⚰️ere ye🐉🌱👈 🧀🌈♌️🎞🌈♌️ir🎞🥫 🎥 🛀♌️⬅️🎥arrow♌️⬅️ 🥫🌈⬅️🌽🌈🪤 tin↪️🎻? 🐗&🅱️🅾️🅰️R 🎞🌈 👈? 🎞👈? 👶👼🧮👶👼 Cloud formations are underground *undergoing a condensing process/patturn that I have never seen before. I saw 4 seperate systems creating a partial, rotating clockwise(near center) and counter(🐦 🌈 cl0qwise🌈 along the lepht 🏦 $ 🏦 🐷Bank, imoG.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Red(ish) skies at knight, indicators of (crodicle clouds( 'Dunn-Huang' Map "🐉sp🔎qi Com¡+"), radial(facial profiles, radial motion, 'feathery' 'edges' as patturns) liquifaction + al² moor processes... 'meateoreologically' 'speaking' at play🌨. 5 overall formations(that R visible to thr naked eye).

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    3>"<³you🧲,🌳, am" ❤sproos |əə

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    A🏆w¡f❤.✍️.s+eþph¡d🐖 st¡'| Aka-🍯Ishrunqthekydz🐑^}🥶.$@¡|s"pitch"(🧭🧭serendipity)

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    The .☀️¹🧭þ+¡c, does not = heat. If its following 👁nstien's 🐑da/ⁿ⁰movement əquation.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    🌈 🧱🧱🧱🌈🧱🧱🧱🌈🧱🧱🧱🌈🌈🧱🧱🧱 ("l👀q Ma.. "No Hand"s) 💆💆💆🏻💆‍♀️💆🏻‍♀️💆🏿‍♀️")❌️🍰 🌊🌊🌊🌊🌊🌊 💆🏿‍♀️💆🏻‍♀️💆‍♀️💆🏻💆💆🏿‍♀️ 👛Þh|○¡d.☦️Lig/Legature=⛪️. 🐮🎯.Leg.A.C🎯🐮 👋👋♂️🧭〰️°🧭♀️👋👋 👋👋💌🧭〰️🧭📬👋👋d.c.

    • @opinyinatedhomeydonpladat3212
      @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

      0:06 When In "thought m'ode.™️."once upon A tyme it was A-typical for me to 'see and feel' 'myself' adjusting my test🥶, and/ore, when angry, thinking things like : ²🤬🕴"smd"( in short/shORT✋️)🕴🤬, when, being a ♀️, I do not now, and never did, have1. 🐾 As An ingredient, and as a term, the word Laxx (¡tiv(s) contain 1 Euclidean Geometry Element 🐨🐨& 1¡ of ⁿ⁰⁰+🍏⁰ⁿ📻, G-umm🌳🛞. <.<<.<<. ^.^.^.^ >.>>.>>. ^⬇️? Aka-🕴☀️🔁☀️🕴🟩hec🟩tor As "base🧢" or "I qin hear yew, 📺🍸that much & ⁿ⁰ further" "primal mode" command. 🔁There is no other way. There has to be an exchange... Then that would mean, at the least, 4🔁 complete serqet's.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Very interesting. I just ordered a knock off version($18 vs. $3,025)of "The art of dialling" by S. Foster, Leybourn's concepts are compared, "paragraph by paragraph" and, in hopes of learning how to use it, a sex+ant. 🐺📨🗯,🔙📨🗨🐖🐖🐖(huff &💨&🌬🏚). Stunt&bl■nt as features angles, traits, characteristics, patturns=astigmatism neg. *Likely bcuz seared human flesh smells a lott like 🥓. *Or so a friend told me. 2nd P. Or: elaborate/eccentric, and distance, D between commands "from" thoughts, which were visually traveling by 'springboarding' 'backwards' ore 180° opposite, in feeling, of what I once 'knew' was °North c.c⬅️, ⏰️c. Each "complete" '¼backward spring⁴🌱' 🍅🥫condensing the molecular structure of the atmosphere by oscillating so rapidly that the atmosphere is becoming more and more magnetically web like, visceral and viscus, in sound(high pitched buzz) and 'live wire🎇' sownd.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Uhjo the 😈 G'ni+ə Dəə🪝 @2:12 a.m.evil itselþh🕴🕴

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Re; last 📨: 🍥📻During the first 2 nearly e 3, years, on a daily basis, motion causdd me to be overcome by 'motion sickness' 🤢. From the beginning this motion was radial in nature🍥🚪, vivid and dynamic, not unlike a kaleidoscope, that every cell in my body was being 🧲🧲 toward and away from, all at thecsame time. Sight brought about the knowledge of the rapidity of the movement and the muscle memory of 'that notion would cause this much tilt(which caused nausea. Until then i had not felt the movement as intensely, once my eyes calculated speed my muscle memory/||, in strait line|measurements, 2×2, now knew it 'should be',/ so felt, nauseated. So, I am very careful with my words, my memory fo||ows along that same path. My Point? "I Ben+ Ligh+" Astronomical Sewc👁et+.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    For a little over 2 years I could only think/do in straight lines, one |ine at a time ie: I understood the vertical²(it's actually horizontal²) information of my window blinds but I had to teach myself the horizontal(actually vertical) information ie; to open the blinds something had to be done , but what?? Bcuz the circular motion /spinning🍥 hadn't been "visually" validated yet it, my mind, would not process circular functions, ad nauseum. This became known as the: ©️🚓¡r¹²¹ Alchemical Depicixxion 42; Thom, at "2&10"🤙, I stopped at the stop sign for 3 whole seconds..IDeeum. All by myselþh🧜‍♀️🚨(slight case of spontaneous combustion).

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    🎼🎼🎼🔑🧲🧭🧲(that's not Tom.that's 🪢 "k nautdef🧬 "not" "Yup, "Def Not" "Not Tom"... Material & Meta-Physical, Literary, Literal, 🔥erarily as well as literrarily misrepresented 'mythos' Aka- 🐮○₩ting♧📚. Q♧re🤠.⬆️? +ions &Sph👂👂 Anybody wanna 🥜, 🫛 ,🦊þ? 🛷🐶..'mush'🍄ooms on the 🌙 🌚 🌔?? Rə^e'd📚🛖. 🦰(Go ⁿ0akland Raiders🏈) Sadly, "Djb🦰👱‍♀️,+" was put 🏈n time out. I

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Since 2020, then? Are yew, hmmm,how shall I say... "gathering the tr○●þ§", +hen?

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    9:28p.m.🌙 86-92°, whirs, wood smoq, and 🏏 on my lepht🍥¿🏴?

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    @ at "camp ○'th¡$" 🏕@A a(&👏👏), then, A○+¡§, A.F.Base." ... WhHoo's yore favorite Physicis+? Naopolean, NApal, Thibet💸. Yes, "Promises".

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    Rodney "Dangir"Field (⬅️as a cluu) now says "cant we all just get along"... I only had so many words to work with, numerically♟️(sum1's countin cac+¡🕴🌵), so combined all C actors, actresses and political parties in 2 1 idiom, hence "Rodknii Dangerfield"⬅️⁴ &👑. Cheq Mate♟️♟️♟️♟️cfmt,g.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    3 times. 3 seasons. Mandela Effect, naturally. Highways 🛣 🛣 🛣 to the left, wind, hooting a wind instrument from "a ove" me.3rhedd☆deddecimals❤.

  • @opinyinatedhomeydonpladat3212
    @opinyinatedhomeydonpladat3212 7 หลายเดือนก่อน

    7:46p.m. an organic belt/orbit that acted as a wick/fuse just fizzled out by zooming by, coincidentally right where id'have to notice' that was about 3pht off the ground. Phosphorescent Bluublaq the entire wick/fuse was gone in less than 1 second. Entered ftom my lepht in m🍥tion traveling rapidly to my right @⁷wier'd 🍥'cloq, while brightening then instantly burning out. ³Rap¡dly. I truly would like to know why the earth is reverberating as rapidly as she is, @110b..p.m., from 101-109₩110 exponentially so. Drains, birds, 🪕⁶🪕twang, tuhtuhtwangtwang cymbal(its illegal for me to refer to it as a "symbol"🐣). 🧇🪨The irony.