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“Green Envy” is the successor of the KillaJoule, and it is being built to become the world’s fastest motorcycle. Full stop! Just like the KillaJoule, it is being built by me (Eva Hakansson), my husband Bill Dubé, and a team of volunteers. Bill and I are both mechanical engineers; I have a PhD in mechanical… Continue reading WHAT IS GREEN ENVY?


I-just-set-a-new-world-record-selfie. 🙂 This is how happy I was after a 251.255 mph (404 km/h) run at the Bonneville Salt Flats with pure battery power at Bonneville Motorcycle Speed Trials on August 30, 2016. The final world record became 248.721 mph (400.278 km/h). That made it the world’s fastest electric motorcycle, the world’s fastest sidecar motorcycle,… Continue reading RECORDS & AWARDS


The weakest link in all wheel-driven speed record attempts is a surprising and obscure detail – tires!  Tires can be one of the main points of failure on all vehicles, but are specifically troublesome on extremely high speed, wheel-driven vehicles. Therefore, we are literally re-inventing the wheel for Green Envy!  The very fastest cars are… Continue reading RE-INVENTING THE WHEEL!


KillaJoule as “LEGO™” This KillaJoule model compatible with the popular LEGO™ toy system was designed by Urim Chae, one of my first year engineering students at the University of Auckland. The 562 students in my first year course “Principles of Engineering Design” (ENGGEN 115) were in Semester 1 2018 assigned to design an accessory compatible… Continue reading FAN ART


There is no more powerful feeling than seeing your idea materialize through work with your own hands! The purpose of ScienceEnvy.com is to help you find that passion for making things. To be inspired to make stuff. To ditch the passive consumption of TV shows, games, junk food, entertainment, fashion, and all other junk that… Continue reading WHY MAKE STUFF?