



Location: Toronto, Canada
Year: 2016
Build: Extracurricular
Award: Guinness World Record 2016 -
Longest Double Helix Structure
Team: Nathan Battersby
Reeda Mahmood
Cristina Thuppu Mundalige
Chanel Rono
Maham Hijazi
Lily Jeon
Duncan Sabiston​
Krishnam Patel
Janusan Baskararajah
Nikol Uki
Rameen Akmal
+50 Ryerson Students and Staff
Video: Link
As part of Ryerson University's participation in the national Science Rendezvous festival, students, staff, and volunteers from the Faculty of Science collaborated to build the world’s longest DNA model in Toronto’s Yonge-Dundas Square. Organized by third-year biomedical science student Reeda Mahmood and biology student Nathan Battersby, the project aimed to break a world record while making science more approachable to the public.
Spanning approximately 40 metres, the wooden DNA structure was assembled onsite with contributions from visitors throughout the day. Participants posed with oversized letters representing the four DNA bases, Adenine (A), Thymine (T), Cytosine (C), and Guanine (G). Their photos were incorporated into the final build, symbolizing the collaborative spirit of the event.
Science Rendezvous featured over 20 interactive exhibits and demonstrations, including robotics showcases by local high school teams, hands-on activities for children, and scientific demonstrations on renewable energy and bird anatomy. A live musical performance by Goodnight, Sunrise—dressed in lab coats—added to the festive atmosphere.
The event, held annually since 2008, is part of a nationwide initiative involving 40 Canadian research institutions. Ryerson's installation captured the public’s imagination and encouraged learning through participation and play. Dean of Science Imogen Coe and other faculty members actively engaged with visitors, reinforcing the message that science is for everyone.
Though the DNA model’s world record is still pending official recognition by Guinness World Records, the event successfully celebrated curiosity, community, and the joy of scientific discovery.