Posted without commentpic.twitter.com/SfHwViFaj4
You can add location information to your Tweets, such as your city or precise location, from the web and via third-party applications. You always have the option to delete your Tweet location history. Learn more
They are saving science from business haha 400,000~ users per day as of late last year.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.