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Sundial and Sine Quadrant (and a Stargazer Badge Request)

windson · 10 · 1698
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de Offline windson

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Sundial and Sine Quadrant (and a Stargazer Badge Request)
on: February 13, 2016, 09:14:32 PM
Teaching astronomy (and navigation) with simple tools used for hundreds of years.

Fully functional replica of a medieval German (Augsburg) sundial, a self-made sine quadrant (acrylic glass) to find out the latitude for the sundial to show the accurate time, a modern Silva to check the accuracy of the compass in the sundial, and a trusty 1980s Explorer.

With the sundial and quadrant alone, students can now determine latitude, compass direction, time, and with some added trigonometry, distances and measurements of objects, landmarks, etc.

Merit Badges Start a new thread with photos of your astronomy gear with a multitool Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread with a photo of your custom ALOX with scissors Start a new thread with a photo showing the Hook in use Must start a thread with a photo of your EDC watch

nz Offline zoidberg

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #1 on: February 13, 2016, 10:24:55 PM
That is awesome and I want one.   :gimme:   :gimme:   I am totally going to have to make up a kit.   :)
« Last Edit: February 13, 2016, 10:26:06 PM by zoidberg »

de Offline windson

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #2 on: February 14, 2016, 05:12:32 PM
Quote from: zoidberg on February 13, 2016, 10:24:55 PM
That is awesome and I want one.   :gimme:   :gimme:   I am totally going to have to make up a kit.   :)
If you are interested in the general subject, check out this project; a 3D-printed, 'digital'  sundial. The idea behind it is stunning - think Swiss cheese!

http://www.mojoptix.com/2015/10/25/mojoptix-001-digital-sundial/
Merit Badges Start a new thread with photos of your astronomy gear with a multitool Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread with a photo of your custom ALOX with scissors Start a new thread with a photo showing the Hook in use Must start a thread with a photo of your EDC watch

za Offline shark_za

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #3 on: February 14, 2016, 05:30:00 PM
Where do you teach them to re-size photos for online forums?
Merit Badges Start a new thread and post a photo of a traditional folder for thirty (30) consecutive days. Start a new thread and post a photo of the leatherman (supertool, core, hacks) for thirty (30) consecutive days. Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread including a photo of shooting at least two (2) different firearms and at least one (1) photo of target (firearms) Start a thread with photos of at least eight different colored ALOX models in your collection Start a new thread showing photos of your outdoor cooking Start a new thread with photos of camping, including those showing preferred camping equipment Start a new thread and post a picture of fire making kit or fire with a multitool Start a new thread with a photo of custom or non standard SAK scales in your collection Start a new thread and post a photo of the multitool for thirty (30) consecutive days. Start a new thread and post a picture of a fish or fishing kit with a multitool

de Offline windson

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #4 on: February 14, 2016, 06:14:00 PM
Quote from: shark_za on February 14, 2016, 05:30:00 PM
Where do you teach them to re-size photos for online forums?

Pics should be auto-resized by the wrapper and are for me both on mobile, through Tapatalk, and on the desktop.

What does it look like for you?
Merit Badges Start a new thread with photos of your astronomy gear with a multitool Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread with a photo of your custom ALOX with scissors Start a new thread with a photo showing the Hook in use Must start a thread with a photo of your EDC watch

za Offline shark_za

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #5 on: February 14, 2016, 06:19:42 PM
Bad connections in Africa highlights that it pulls the full file through and then sizes it for screen display.

* Capture.JPG (Filesize: 10 KB)
Merit Badges Start a new thread and post a photo of a traditional folder for thirty (30) consecutive days. Start a new thread and post a photo of the leatherman (supertool, core, hacks) for thirty (30) consecutive days. Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread including a photo of shooting at least two (2) different firearms and at least one (1) photo of target (firearms) Start a thread with photos of at least eight different colored ALOX models in your collection Start a new thread showing photos of your outdoor cooking Start a new thread with photos of camping, including those showing preferred camping equipment Start a new thread and post a picture of fire making kit or fire with a multitool Start a new thread with a photo of custom or non standard SAK scales in your collection Start a new thread and post a photo of the multitool for thirty (30) consecutive days. Start a new thread and post a picture of a fish or fishing kit with a multitool

de Offline windson

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #6 on: February 14, 2016, 06:59:00 PM
Quote from: shark_za on February 14, 2016, 06:19:42 PM
Bad connections in Africa highlights that it pulls the full file through and then sizes it for screen display.

Thats good to know, thank you.  :tu:

In that particular example, it's actually worth it; since both sundial and quadrant are quite interesting to look at from up close.
Merit Badges Start a new thread with photos of your astronomy gear with a multitool Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread with a photo of your custom ALOX with scissors Start a new thread with a photo showing the Hook in use Must start a thread with a photo of your EDC watch

nz Offline zoidberg

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #7 on: February 14, 2016, 08:54:31 PM
Quote from: windson on February 14, 2016, 05:12:32 PM
Quote from: zoidberg on February 13, 2016, 10:24:55 PM
That is awesome and I want one.   :gimme:   :gimme:   I am totally going to have to make up a kit.   :)
If you are interested in the general subject, check out this project; a 3D-printed, 'digital'  sundial. The idea behind it is stunning - think Swiss cheese!

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

 :cheers:

mc Offline Gerhard Gerber

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #8 on: February 16, 2016, 09:31:26 AM
This is extremely cool, useful things that don't need batteries!  :cheers:

I am also now looking away because it looks expensive  :facepalm:

 :D

 :tu:

de Offline windson

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Re: Sundial and Sine Quadrant (and a Stargazer Badge Request)
Reply #9 on: February 16, 2016, 04:48:51 PM
Quote from: Gerhard Gerber on February 16, 2016, 09:31:26 AM
This is extremely cool, useful things that don't need batteries!  :cheers:

I am also now looking away because it looks expensive  :facepalm:

 :D

 :tu:

Low tech FTW  :tu:
Merit Badges Start a new thread with photos of your astronomy gear with a multitool Start a new thread and post a photo of a flashlight as part of your EDC Start a new thread with a photo of your custom ALOX with scissors Start a new thread with a photo showing the Hook in use Must start a thread with a photo of your EDC watch

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