We made a camera obscura in a Uhaul!

We made a pinhole camera in the back of a Uhaul!

Check out How To Make Everything:
https://youtu.be/JpbEL23rYec

Check out Minute Physics’ video on seeing without glasses:
https://www.youtube.com/watch?v=OydqR_7_DjI

Creator: Dianna Cowern
Co-Producer: Dan Walsh
Editing: Jabril Ashe

Thanks to How to Make Everything, Kyle Kitzmiller, everyone who came to the meetup, and everyone who tweeted me photos of the eclipse!

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http://instagram.com/thephysicsgirl

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Outex Underwater Camera Housing

Outex light weight and affordable housings have made many of my professional adventure shoots possible!
http://outex.com

Alison’s Adventures
“Your Passport To The World”

Follow my Adventures Below
Instagram : http://instagram.com/alisonsadventures/
My Website : http://www.AlisonsAdventures.com
Facebook : http://facebook.com/alisontealsadventures
Twitter : http://twitter.com/AlisonAdventure

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The World in UV

UV cameras expose a hidden world and reveal the incompleteness of our perception
The Physics Girl looks at sunscreen: https://youtu.be/GRD-xvlhGMc
How to make sunscreen from scratch: https://youtu.be/lMXAY5F28L0

In summary, ultraviolet light interacts differently with matter for a number of reasons:
1. Some pigments selectively absorb UV so they may appear white in the visible but dark in the UV. The pigments usually dissipate the UV energy as heat, though the breaking of bonds can also occur.
2. Fluorescent molecules absorb UV light and re-radiate that energy as visible light. This makes them look dark in the UV but glowing under black light.
3. Ultraviolet light scatters more than visible light because the wavelength is shorter and Raleigh scattering is proportional to the reciprocal of wavelength to the power of four.

Special thanks to HHMI BioInteractive for their awesome animations of melanocytes and how the melanin in melanosomes protect your DNA. To see the full video explaining how we get our skin color, check out: https://www.youtube.com/watch?v=VC0TL_lYLm8

Special thanks to Patreon supporters:
Donal Botkin, Michael Krugman, Jeff Straathof, Zach Mueller, Ron Neal, Nathan Hansen, Yildiz Kabaran, Terrance Snow, Stan Presolski

References:

Overview of main UV effects:
Visualizing Rayleigh Scattering through UV Photography
https://journals.ametsoc.org/doi/pdf/10.1175/BAMS-D-14-00260.1

Arctic animals are photographed in the UV to increase visibility and get an accurate count:
Lavigne, D. (1976). Counting Harp Seals with ultra-violet photography. Polar Record, 18(114), 269-277. doi:10.1017/S0032247400000310

Absorption spectrum of melanin: http://www.cl.cam.ac.uk/~jgd1000/melanin.html

“The spectroscopy of human melanin pigmentation,” by N. Kollias. In: Melanin: Its Role in Human Photoprotection, pp. 31 – 38. Valdenmar Publishing Co. (1995).

“Optical properties of human sclera, and their consequences for transscleral laser applications,” by A. Vogel, C. Dlugos, and R. Nuffer, Lasers in Surgery and Medicine 11(4), pp. 331 – 340 (1991).

“The incidence and time-course of latanoprost-induced iridial pigmentation as a function of eye color,” by P. Wistrand, J. Stjernschantz, and K. Olsson, Survey of Ophthalmology 41(S2), pp. S129 – S138 (1997).

Music by Epidemic Sound: https://www.epidemicsound.com “Spring Moods 5”

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CREATE ANYWHERE!!! LOVE WD’s My Passport Wireless SSD

Thanks to WD’s My Passport Wireless SSD I can now EASILY CREATE FILMS FROM ANYWHERE! And you can too!!!

As an adventure filmmaker I use all kinds of cameras and drones to capture footage BUT Backing up and accessing the memory cards is very inconvenient during travel, AND I got really tired of lugging around my big laptop since it takes up a lot of space and weight.

Thus I’m INCREDIBLY excited to be able to simplify the entire process by ONLY using the WD’s My Passport Wireless SSD with a built-in SD card reader and my phone to share my adventures.

The drive is small, durable and easy to take on my travels, and I can use it to wirelessly upload, back up and stream content with nothing else but my phone.

My Passport™ Wireless SSD is an all-in-one portable drive that helps preserve photos and videos captured on your cameras & drones.

This is made for creators on-the-go : photographers and drone pilots.

-Back up photos & videos with the built-in SD™ card reader or integrated USB port – no laptop needed!
-Durable, shock-resistant SSD
-drops (up to 1 meter), even when the drive is powered on and in use.
-The built-in battery lasts all day so you can work and play longer.
– creates it’s own fast Wi-Fi network to view and download photos (including RAW) and 4K videos.

#sponsored #WD #WesternDigital #MyPassportWirelessSSD #MyPassportWirelessPro #SSD

Alison’s Adventures
“Your Passport To The World”

Follow my Adventures Below
Instagram : http://instagram.com/alisonsadventures/
My Website : http://www.AlisonsAdventures.com
Facebook : http://facebook.com/alisontealsadventures
Twitter : http://twitter.com/AlisonAdventure

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Dissecting The Camera: Crash Course Film Production #4

Sometimes the most intimidating part of making a movie is that little box of concentrated technology called “The Camera.” But, FEAR NOT! In this episode of Crash Course Film Production, Lily helps us dissect the basics of modern movie cameras so you can have an easier time getting started… hopefully!

***Re-Upload: Thanks to commenters for pointing out the error!

***

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

The Latest from PBS Digital Studios: https://www.youtube.com/playlist?list=PL1mtdjDVOoOqJzeaJAV15Tq0tZ1vKj7ZV

***

Want to find Crash Course elsewhere on the internet?
Facebook – http://www.facebook.com/YouTubeCrashCourse
Twitter – http://www.twitter.com/TheCrashCourse
Tumblr – http://thecrashcourse.tumblr.com
Support Crash Course on Patreon: http://patreon.com/crashcourse

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