With Twitter's Search API you can only send 180 Requests every 15 minutes. With a maximum number of 100 tweets per Request, you can mine 72 tweets per hour (4 x 180 x 100 =72)
typo.
4 x 180 x 100 is not 72, it actually 72000
So it not 72 tweets per hour
In readme Motivation section, in line
typo.
4 x 180 x 100
is not72
, it actually72000
So it not72
tweets per hour