Analyse @Rainmaker1973's tweets
Scientist Brian Greene demonstrates weightlessness during freefall
[source: https://t.co/ke6y5Q8CLv]
[explanation: https://t.co/dpvKyu7dpw]
https://t.co/zAZbLCYpiQ
[source: https://t.co/ke6y5Q8CLv]
[explanation: https://t.co/dpvKyu7dpw]
https://t.co/zAZbLCYpiQ