13 October 2021 · 03:16 UTC@RichardfromSyd1 @rossleedham @OrinCordus some great educational use of Ro and Re here.…@RichardfromSyd1 @rossleedham @OrinCordus some great educational use of Ro and Re here. https://t.co/cMR2oMFpTz← Back to October 2021