 | Kamil Leziak ("Hi, my name is Kamil, I'm a climatologist, working at the university. I conduct research on...") |  | Kenneth Dymski ("I am a retired aerospace engineer who worked on the Shuttle Orbiter Spacesuit, systems...") |
 | Karol Zawada ("Technik budownictwa w specjalizacji projektowanie architektoniczne, student budownictwa na...") | Krzysztof Skrzypiec ("Witam serdecznie na moim profilu. Nazywam siÄ™ Krzysztof Skrzypiec. Uruchamiamy projekty...") | |
 | Kudushoo ("Aspiring nuclear engineer with too much free time.") |  | KrisB |
 | Krzysztof Maruszczak | kindrick ("Im Kindrick. I like to make things and i enjoy science and art.") | |
 | Kenton ("I am a 69 yo retired teacher with interest in science.") |  | Keith Myers ("Computing from beautiful, Northern California. I have maintained an avid interest in all...") |