Algodoo

The new LaserJet LJ01 produces 90000 N of thrust. Use it for moving massively
heavy objects like planes. To achieve this thrust, LJ01 accelerates photons to 0.00001% faster
than the speed of light on Earth. Nomally, this wouldn't do much, but the powerful 10 gigawatt laser diode inside
provides a lot of photons, which increases thrust dramatically. Any faster, and the entire engine would collapse in
on itself and create a black hole. LaserJets can even be used in space, but is not reccommended due to overheating issues.