Rewind·Posted on Feb 6, 2013The Ridiculous Vs. The Incredibly Useful In A 1940 Issue Of Popular MechanicsTo be fair, personal helicopter wings and glow-in-the-dark hair are nifty ideas...in principle.by Leonora EpsteinBuzzFeed StaffLinkFacebookPinterestTwitterMail 1. Ridiculous 2. Useful 3. Ridiculous 4. Useful 5. Ridiculous 6. Useful (for you nostalgic folks still using typewriters) 7. Ridiculous 8. Useful (I mean, if you're in a jam and need to make a table real fast) 9. Ridiculous 10. Useful 11. Ridiculous 12. Useful (how to print photos onto objects at home? Cool!) 13. Ridiculous 14. Useful (but duh)