Stream and Download
Professor Thaddeus Lowe, maker of the horse-drawn hydrogen generator, inflates his observation balloon, Intrepid, to survey enemy positions.
© 2017 PBS & WGBH Educational Foundation.
All rights reserved.
You must be logged in to use this feature
Assign directly to your students using the code or link above, without having them log in. Simply tell your students to go to
www.pbsstudents.org and enter the Assignment Code, or click on the Assignment URL to share the assignment as a link.