This is a neat experiment you can try yourselves. It's not so difficult you just need a candle, a needle and two glasses

I call these series of photos Lights. These are candles at very low shutter speed. One day I was on the beach, taking photos as usual and after the sun went down people took lots of candles and put the near the water in a line. From a distance it looked like the beach was on fire. By the time i got close enough to take some shots it was already dark and it was a perfect time to make such photos. Here you can see the candles right under the lights. I