He waited for several seconds and opened the door.
He did it in only a fraction of a second.
He ran 100 meters in 11 seconds flat.
My contractions last about forty-five seconds.
I missed the train by thirty seconds.
I made the last bus by a few seconds.
My watch gains thirty seconds a month.
My watch gains five seconds a day.
Light travels at a velocity of 186,000 miles per second.
Light travels around the earth seven and a half times a second.
I would like to draw your attention to the fact that Kanjisho uses multiple sources of data provided by third parties.
The search results are provided by the wonderful Jisho API which itself uses various data sources which you can find on the jisho's website. The data concerning the kanji strokes are provided by the KanjiVG project, under the CC BY 3.0 FR license. I also use Tatoeba to provide example sentences and Kuroshiro to obtain the furiganas and romajis versions of the sentences.
If you find any vices, errors or malfunctions, please let me know so that I can correct them.