The antique painting was sold for $100,000. The italicized word is the gerund. This word is a gerund because it is functioning as a noun. Gerunds have nominal functions. Painting is synonymous wit picture .Participles do not; they denote actions. For example: " I saw her painting the wall" carries a participle: painting. It can be corrected as "I saw her when she was painting the wall." Notice how the full past continuous has been retrieved. This means auxiliary + participle.
according to the author this means that a new generation has more technology and can get help more quickly knowing that technology like for example domestic robots, have become a big science nowadays.
