The Electromagnetic Radiation Poster - Page 1
Forum section: electronics / general

author: AccelMotion
author_rank: Newbie
timestamp: November 12, 2016, 07:21:59 pm
content: Hi all.I loved the EM Radiation poster that Dave showed in the last mailbag... but the scanned datafile really needed some cleanup: there were tear marks, color fades, scanning dust/specks, etc.I wanted to print one, so I cleaned it up, white-balanced it, and pumped up the colors a little -- the updated version is right here:https://www.flickr.com/photos/davidwsmith/30934526175/sizes/l/

author: PointyOintment
author_rank: Frequent Contributor
timestamp: November 12, 2016, 09:14:26 pm
content: For reference, the top Google result forchart of electromagnetic radiationsisthis version from LLNL(who originally scanned it and posted it online). I opened the two images in two tabs side by side and blink-comparated them—yours does indeed not show the scratches that the original scan does. Also the white balance and crop are a bit different.I also foundthis other cleaned-up version.

author: AccelMotion
author_rank: Newbie
timestamp: November 13, 2016, 04:34:18 pm
content: Awww pointy I failed at finding a clean-up myself or else I'd not have done all that work.D

author: CatalinaWOW
author_rank: Super Contributor
timestamp: November 13, 2016, 06:42:04 pm
content: I appreciate the cleaned up chart.

author: TheBay
author_rank: Unknown
timestamp: November 13, 2016, 06:51:36 pm
content: All of these have an issue with the lower 1/3rd of the image. It seems to have been scanned at that point at a lower resolution for some reason.

author: CatalinaWOW
author_rank: Super Contributor
timestamp: November 14, 2016, 01:13:25 am
content: Here is one of my favoriteshttp://www.randfoo.com/wp-content/uploads/2010/01/The-IR-Wall-Chart.pdf

author: PointyOintment
author_rank: Frequent Contributor
timestamp: November 15, 2016, 04:06:44 pm
content: Quote from: evb149 on November 13, 2016, 07:46:52 pm404

author: Alex Eisenhut
author_rank: Super Contributor
timestamp: November 16, 2016, 03:02:50 am
content: Nearly fell off my chair, that EM poster is on the wall in episode 3 season 1 of Voyage to the Bottom of the Sea, starring Richard Basehart!

author: dexters_lab
author_rank: Unknown
timestamp: November 17, 2016, 06:09:10 pm
content: is it wrong to prefer the original faded version?

author: Halcyon
author_rank: Unknown
timestamp: March 05, 2017, 03:56:50 am
content: Resurrecting and older thread here... Dave, I notice you got one of these posters printed for your lab. Where did you get it printed and on what sort of paper? What's the quality like up close? I know there is a lot of fine detail in the file, did that reproduce OK?

author: SeanB
author_rank: Super Contributor
timestamp: March 05, 2017, 02:46:27 pm
content: Printed it out on canvas, just A2, at a local copy place. You lose resolution onto the canvas, but you can have most larger print places do it on photo paper ( preferably a matt one) at A1 with it still being readable, and A1 canvas is still within the resolution of the TIFF file.

author: Testing123
author_rank: Contributor
timestamp: September 07, 2017, 02:09:32 pm
content: Information update on the Chart of Electromagnetic RadiationsHere’s an Amazon link where you can purchase the Morgan Howarth version of the Chart of Electromagnetic Radiations in various sizes:https://www.amazon.com/entitled-Electromagnetic-Radiations-Morgan-Howarth/dp/B0731BXQ6M?th=1Note that according to a physics central physics buzz blog (http://physicsbuzz.physicscentral.com/2013/09/making-chart-of-electromagnetic.html) the driving force behind its creation in the late 1930’s was Dwight Barr. The version sold on Amazon is “by Morgan Howarth” a Washington D.C. area photographer (https://www.morganhowarth.com).Mr. Howarth also offers digital download versions of the chart on his website which can be found here:http://morganhowarth.photoshelter.com/image/I0000QtK4N6KeqQsMr. Howarth says the following on his Chart of Electromagnetic Radiations image sale page:“1944 Chart of Electromagnetic Radiations by H,E. Brown of the United States. Edited by Arthur H. Compton. Compiled by R.J. Stephenson and D.L. Barr. Produced by W.M. Welch Manufacturing Co.”In addition to the above info, I note that at the top left corner of the chart “Drawings by E. Borzone” is displayed. So far, I have been unable to find any info on this person.

author: Halcyon
author_rank: Unknown
timestamp: September 07, 2017, 10:50:36 pm
content: Quote from: Testing123 on September 07, 2017, 02:09:32 pmIt's a bit annoying that he makes you sign up for an account before you can access the download (which I did using a temporary e-mail address), only to find you still need to contact him to get the download.EDIT: Got a reply -- He just referred me toImagekindwhere I can order it. I get that he's an artist, but it's a bit much to pay for a one-off print. Why offer a download if you're not willing to part with it?EDIT #2:If you use the promo code "LABOR1750" on Imagekind, it will knock 50% off the price(confirmed working today). Much more reasonable price. Seems to work site-wide and even for international orders.

author: Testing123
author_rank: Contributor
timestamp: September 09, 2017, 01:06:35 am
content: Quote from: Halcyon on September 07, 2017, 10:50:36 pmThanks for the info. 50% is a great deal until you check out the original price (sigh).

author: Halcyon
author_rank: Unknown
timestamp: September 10, 2017, 12:54:39 am
content: Quote from: Testing123 on September 09, 2017, 01:06:35 amThe original price is a joke.