NASA Webb Telescope on Twitter: "Happy #SignLanguageDay! Here's a #NASAWebb fun fact signed by @NASAGoddard mission director Apurva Varia: #DYK a human hair is 1000x thicker than Webb's gold mirror coating? The gold optimizes Webb for reflecting infrared light! #IDSL Our #ASL Playlist: https://t.co/IDjeZVocRV… https://t.co/eNYCrPWYXK"

Country	Code	For customers of
United States	40404	(any)
Canada	21212	(any)
United Kingdom	86444	Vodafone, Orange, 3, O2
Brazil	40404	Nextel, TIM
Haiti	40404	Digicel, Voila
Ireland	51210	Vodafone, O2
India	53000	Bharti Airtel, Videocon, Reliance
Indonesia	89887	AXIS, 3, Telkomsel, Indosat, XL Axiata
Italy	4880804	Wind
3424486444	Vodafone
» See SMS short codes for other countries

Happy #SignLanguageDay! Here's a #NASAWebb fun fact signed by @NASAGoddard mission director Apurva Varia: #DYK a human hair is 1000x thicker than Webb's gold mirror coating? The gold optimizes Webb for reflecting infrared light! #IDSL Our #ASL Playlist: https://www.youtube.com/playlist?list=PLcy1hEnsejK036ye_YUVOLpJ6UjG0INt0 …pic.twitter.com/Paupe2f2jL

Webb Telescope Fun Fact in ASL.mp4

Translation: Webb’s mirror is coated in gold to best reflect infrared light! The coating is so thin that a human hair is 1000x thicker. About a golf ball's worth (mass) of gold coats the mirror.

10:31 AM - 23 Sep 2021

72 Retweets
370 Likes

8 replies 72 retweets 370 likes

1. Janamechanica‏ @janamechanica Sep 23
  Replying to @NASAWebb @NASAGoddard
  
  Pretty Amazing Thank You Apurva and the #NASAWebb Team!
  
  3 likes
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. Aryamehr‏ @Aryameh97536063 Sep 23
  Replying to @NASAWebb @NASAUniverse @NASAGoddard
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo
1. John Porno‏ @MikulasK Sep 23
  Replying to @NASAWebb @NASAGoddard
  
  So in fact, when you deploy Webb, there will be less gold on Earth. Totaly worth it :)
  Thanks. Twitter will use this to make your timeline better. Undo
  
  Undo