What scientific advancement in speed detection was introduced in 1910?

The introduction of the photo-speed recorder in 1910 marked a significant advancement in speed detection technology. This device automated the process of capturing the speed of moving vehicles by taking photographs when a vehicle exceeded a predetermined speed limit. It utilized a combination of mechanical components and photographic film, which allowed law enforcement to document speeding offenses without the need for subjective measurement.

Unlike the radar system, which was developed much later in the 20th century, the photo-speed recorder provided a tangible photographic evidence of a speed violation, paving the way for future innovations in speed enforcement technology. The speedometer, while important for measuring a vehicle's speed in real time, does not serve a direct law enforcement purpose itself. The laser speed gun, which utilizes laser technology for precise speed measurements, was introduced later as well, long after 1910. Thus, the photo-speed recorder represents the correct answer as the first major advancement in the realm of speed detection systems during that period.