Modified Origami Hang Glider (Design by Ponder)

Here is an interesting design improvement by 詹胖得 (see his blog in Chinese).

Video of this design in flight as a walkalong glider:

Here's a video of a little longer flight:

Here is a photo of 詹胖得's construction:

Here is the Design by Ponder made from phonebook paper with a 17 cm wingspan and toothpick nose weight (note the tangential light accentuating the mountain and valley folds):