Sort:  

NASA was deliberately trying to make the flag visible flutter. You do this by placing a small horizontal pipe on top of the pole - which makes it in an inverted L shape. The flag is suspended by horizontal pipes and the wrinkles on the flag create a fluttering effect. nanana....:)

Coin Marketplace

STEEM 0.18
TRX 0.13
JST 0.029
BTC 58157.69
ETH 3122.82
USDT 1.00
SBD 2.42