Worth remembering if you are out for any length of time, that the sun is as strong now as late August. Here's the #sunindex. Helen W

San Francisco gov: "Index of Records". Search by agency/ keyword. mission.sfgov.org/sunindex. Search for "investigation": http://is.gd/4sOYQ

Thrilled to announce our new name, Sun Index! Reflecting our commitment to providing users with the most comprehensive & innovative tools for staying safe in the sun while getting enough vitamin D. Join us in the next chapter! #SunIndex #SunSafety https://t.co/Zh1G0SbNRH

Vitamin D Could Prevent Cold and Flu https://t.co/cmpQU1ySXd @TheSunIndex

How to Soak Up in Vitamin D This Winter https://t.co/CBGAqTHOgC @TheSunIndex

@jaredvc @AdamJoshDotCom Angular diameter of the sun, has little to do with the Flat/Globe. https://t.co/C33zuI7rvV You're also assuming you know what the sun IS

Here is what I mean: https://t.co/LQQgiySjxb @mode23 @ItsFlatFolks @GlobeEarthToday @caperguy33 @opticsillusions