Never saw her channel before but this is really cool. Simon makes stuff, and videos them. Lots of silly stuff and lots of robot related stuff. Useless machines.
Anyway, as well as having YouTube channel that's cool, she was ill as well: https://www.youtube.com/watch?v=-INz4XVeyJ4 well worth watching few episodes. (Check 1m 30s)
I've been subscribed for a while now. Great vidoes.
Found her viat another You Tubers, Physics Girl, who is also worth a look.
https://www.youtube.com/channel/UC7DdEm33SyaTDtWYGO2CwdA