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Fog lights and distance estimationFeatured science projectScience project video


This experiment was done to investigate the effectiveness of using 1 rear fog light on the rear of a vehicle to assist in the estimation of distance, compared with 2 rear fog lights and and no fog lights at all.


The use of 2 rear fog lights will improve the driver's ability to estimate distance.

Scientific Terms

Fog, visibility


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Complexity level:
Project cost ($):
Time required:
1 hour to prepare, 1 day for experiment
Material availability:
4 cars, 3 of which are of a similar make and model are required. Fog machines will need to be leased for the purposes of this experiment
Safety concerns:

Be careful to avoid any accidents. Always have someone on standby to alert the drivers, to prevent them from colliding into the stationery cars