A perfect Sunday night designing and flying paper planes and enthusing and giggling over its 'flying 'performance from the balcony. The first attempt flew straight down - pulled down by gravitational force; the second one flew some distance then just propelled downwards; and the last attempt was the coolest - it traveled some distance moving with the wind with its aerodynamic design and finally propelling downwards - so cool! But on the hindsight, we know we are causing some paper-plane litters out there, haha!
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