A modular impact diverting mechanism for football helmets [pdf](sfu.ca)16 points by luu 4 months ago | 7 comments
Observations on Credit and Lending Practices in Ur III Mesopotamia (2004) [pdf](sfu.ca)72 points by throw0101b 3 years ago | 30 comments
![Screenshot of sfu.ca: A modular impact diverting mechanism for football helmets [pdf]](https://hn.urlbox.com/shots/renders/2026/6/8/dd1b996d-9116-4366-8a30-c7a074808bdf.jpg)
![Screenshot of sfu.ca: Observations on Credit and Lending Practices in Ur III Mesopotamia (2004) [pdf]](https://hn.urlbox.com/shots/renders/2023/9/16/bbe27618-ae67-45b4-9e23-7027cd460b9a.jpg)