The Total Eclipse of the Sun stamp is the first U.S. stamp to use thermochromic ink, which reacts to the heat of your touch. Placing your finger over the black disc on the stamp causes the ink to change from black to clear to reveal an underlying image of the moon. The image reverts back to the black disc once it cools.

reposted Total Eclipse of the Sun

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reposted Changing remote repository for a git submodule – Stack Overflow

These commands will do the work on command prompt without altering any files on local repository

git config --file=.gitmodules submodule.Submod.url
git config --file=.gitmodules submodule.Submod.branch Development
git submodule sync
git submodule update --init --recursive --remote
Please look at the blog for screenshots: Changing GIT submodules URL/Branch to other URL/branch of same repository