This is a selection of some of the water-cooler moments that really got people on Twitter talking. (Of course, there’s always a chance that tomorrow something even bigger will happen.)
The measurement you see is primarily Tweets per minute (TPM) — which we have written about previously. It gives you the highest number of Tweets about a specific topic or hashtag within a given minute. The number by itself doesn’t tell you much — but when comparing the TPM around different events, you begin to see how significant an event can be on Twitter.
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Source
Oh Sharknado.