All comments are now on the Fireball forum, a place to ask questions, share your thoughts, and easily search for topics that interest you. Find it here: https://fireball.discourse.group/ I dive into my old collection of Popular Mechanics magazines and get inspired to build something! I found Ernest Winter’s air screw bicycle, so I tried to build it. He claims it is able to hit 20 miles per hour, will I be able to match his speed? How will I build the propeller? How can I power it with my feet? Will it go fast enough to fly? How does it compare to a giant fan? I go on the journey to test it and more! Hex Key Holders https://fireballtool.com/yt/hexkey-holder Stabila Protractor https://fireballtool.com/stabila-18-tech-700-da-digital-electronic-angle-finder/ NEW Welding Tables https://fireballtool.com/collections/tables The Professional Cyclists that Helped Us on the Journey https://packfiller.com/ More Cool Tools Here https://fireballtool.com/