Two Words That Don’t Mean What You Think They Do
When you hear “gravity waves” or “sprites”, you’d think you would know what is being discussed. After all, those ripples in space-time that Einstein predicted would emanate from twin, colliding, black holes were recently observed to much fanfare. And who doesn’t love early 8-bit computer animations? So when we were browsing over at SpaceWeather we were shocked to find that we were wrong twice, in one photo (on the right).
In retrospect, the waves we were thinking of are actually “gravitational waves”. Gravity waves are any waves where gravity provides the restoring force — think ocean waves. But did you …read more
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