Labels:book | box | person | pole | poster | tribute album | water OCR: FLIGHT While none of eonardo's flying machines ever got off the ground, his designs were HELCOPTER astonishingly prophetic. his famous drawing shows vertical screw of starched linen stretched onto metal frame The linen screw was designed to rotate rapidly when powered by someone pedaling underneath it, Some consider this FLIGI inventionto foreshadow the modern helicopter. think, if this screw instrument is well made from linen starched (to block its pores) aid turned rapidly, then said screw will climb upwards." 1996 SoftKey Multimedia Inc, subsidiary SoftKey International Inc Leonardo desi gned
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