Unlike the headlamp, the candle is independent of the tortoise's current behaviour pattern.
At night the search was done with torches and headlamps.
The candles mounted on the backs of the robots trace out their trajectories; the fainter traces are made by the headlamps.
This is the headlamp pattern previously noted.
In our view, the greatest single factor which could contribute to the prevention of dazzle is the correct aiming of headlamp beams.
According to police reports, headlamp dazzle was responsible for 1,272 accidents involving personal injury in 1952.
To me, it is ludicrous that as the law stands a vehicle can be on the road, day or night, without either headlamps or stoplights.
This objection is that the use of headlamps in well lighted streets would impair the value of the street lighting.
