Apple iPhone, social media applications on screen, location unknown, 30 January 2017. https://www.rawpixel.com/image/6113729/photo-image-iphone-phone-public-domainFree Image from public domain licenseSocial media applications on mobile screen, location unknown, date unknown. https://www.rawpixel.com/image/6112943/photo-image-instagram-phone-public-domainFree Image from public domain licenseA low-angle shot of a tall tower of the Golden Gate Bridge. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3299623/free-photo-image-android-background-architectureFree Image from public domain licenseConcrete wall texture mobile wallpaper, aesthetic high definition background https://www.rawpixel.com/image/6169165/photo-image-background-wallpaper-textureFree Image from public domain licenseWhite wall texture mobile wallpaper, aesthetic high definition background https://www.rawpixel.com/image/6169156/photo-image-background-wallpaper-textureFree Image from public domain licenseORBCOMM–2 (2015). Falcon 9 on the pad in advance of mission to launch 11 ORBCOMM satellites & attempt 1st stage… https://www.rawpixel.com/image/2229569/official-space-photosFree Image from public domain licensePurple fabric texture mobile wallpaper, aesthetic high definition background https://www.rawpixel.com/image/6169155/photo-image-background-wallpaper-textureFree Image from public domain licensePerson working on Macbook Pro laptop, location unknown, 14 February 2017. https://www.rawpixel.com/image/6113337/photo-image-phone-public-domain-laptopFree Image from public domain licenseInstagram page on Samsung laptop screen, location unknown, 30 January 2017. https://www.rawpixel.com/image/6112106/photo-image-instagram-phone-public-domainFree Image from public domain licenseAbstract architectural texture mobile wallpaper, aesthetic high definition background https://www.rawpixel.com/image/6165761/photo-image-background-wallpaper-textureFree Image from public domain licenseGreen leaf texture phone wallpaper, nature high definition background https://www.rawpixel.com/image/6169212/photo-image-background-wallpaper-textureFree Image from public domain licenseSocial media applications on mobile screen, location unknown, 7 March 2017. https://www.rawpixel.com/image/6113522/photo-image-phone-public-domain-logoFree Image from public domain licenseSocial media applications on mobile screen, location unknown, date unknown. https://www.rawpixel.com/image/6113134/photo-image-phone-public-domain-logoFree Image from public domain licenseBig Woods Lake. Original public domain image from Wikimedia Commons https://www.rawpixel.com/image/3289906/free-photo-image-apple-iphone-cellphone-photography-images-photosFree Image from public domain licensePerson playing Leo's Fortune game on iPhone, location unknown, 4 February 2016. https://www.rawpixel.com/image/6113202/photo-image-iphone-phone-public-domainFree Image from public domain licenseSocial media applications on mobile screen, location unknown, date unknown. https://www.rawpixel.com/image/6113125/photo-image-instagram-phone-public-domainFree Image from public domain license