Date: 23/02/2021 15:39:12
From: Tau.Neutrino
ID: 1701024
Subject: Sundial time

Seen these, they project the time onto a wall or ceiling. I’m thinking of making an outside sundial and somehow project its shadow or reflection through the front window and onto an interior wall maybe using a mirror or a stretched shadow

Sundials

https://www.instructables.com/The-Equatorial-Sundial/

https://www.instructables.com/3D-printed-SunDial/

https://www.instructables.com/Sundial-Watch-3D-Printing/

https://owlcation.com/academia/How-To-Make-A-Simple-Sundial-With-Photos

https://www.instructables.com/Vertical-Sundial-on-Slate/

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Date: 23/02/2021 16:28:37
From: Tau.Neutrino
ID: 1701047
Subject: re: Sundial time

A 3D printed sundial watch would be a great project.

https://www.instructables.com/Sundial-Watch-3D-Printing/

There’s 4 different models to choose from

The Classic

The Sport

The Traveller

The Adventurer

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Date: 23/02/2021 17:19:43
From: dv
ID: 1701070
Subject: re: Sundial time

https://www.youtube.com/watch?app=desktop&v=78I-A7ikXYU

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Date: 23/02/2021 17:22:52
From: roughbarked
ID: 1701073
Subject: re: Sundial time

Tau.Neutrino said:


Seen these, they project the time onto a wall or ceiling. I’m thinking of making an outside sundial and somehow project its shadow or reflection through the front window and onto an interior wall maybe using a mirror or a stretched shadow

Actually knew a scientist who worked with the CSIRO who did exactly this.

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Date: 23/02/2021 17:24:45
From: SCIENCE
ID: 1701074
Subject: re: Sundial time

dv said:


https://www.youtube.com/watch?app=desktop&v=78I-A7ikXYU

mathematics is pretty cool

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Date: 23/02/2021 17:25:27
From: roughbarked
ID: 1701077
Subject: re: Sundial time

SCIENCE said:


dv said:

https://www.youtube.com/watch?app=desktop&v=78I-A7ikXYU

mathematics is pretty cool

Maybe in that case, hot?

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Date: 23/02/2021 17:29:14
From: SCIENCE
ID: 1701082
Subject: re: Sundial time

roughbarked said:


SCIENCE said:

dv said:

https://www.youtube.com/watch?app=desktop&v=78I-A7ikXYU

mathematics is pretty cool

Maybe in that case, hot?

are those numbers defined by the shade or by the light

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Date: 23/02/2021 17:31:56
From: roughbarked
ID: 1701085
Subject: re: Sundial time

SCIENCE said:


roughbarked said:

SCIENCE said:

mathematics is pretty cool

Maybe in that case, hot?

are those numbers defined by the shade or by the light

The light.

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Date: 23/02/2021 19:23:49
From: Tau.Neutrino
ID: 1701149
Subject: re: Sundial time

dv said:


https://www.youtube.com/watch?app=desktop&v=78I-A7ikXYU

Thanks, that is very cool.

https://www.mojoptix.com/2015/10/25/mojoptix-001-digital-sundial/

Northern and Southern hemisphere versions

https://www.thingiverse.com/thing:1068443

https://www.etsy.com/listing/248715228/digital-sundial

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Date: 23/02/2021 22:27:06
From: mollwollfumble
ID: 1701190
Subject: re: Sundial time

The Monash Uni sundial at 9 am.

Or you could install a really big sundial.

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