Why Do Railway Tracks Have Stones Underneath?

[@chuckcawthon3370]

Excellent Presentation. Loaded with information.
Well Done by all.

[@mevoidieuboyer3989]

I like the new design of History of Simple Things

[@historyofsimplethings]

Thank you!

[@John-jl9de]

Thank you, good to know.

[@rickkwitkoski1976]

Thank you

[@TJK50014]

some days, I feel like a fouled ballast

[@kg-Whatthehelliseventhat]

Video ideas
Coffee filters,
Locks
Coat hangers
Silverware
Thermometer
Toilets, urinals and even ostomy toilets
Incense burners, oil lamps
Window blinds (not curtains but blinds)
Ice cream sodas or just soda for taste and in the past for medical reasons
Stuffed animals plush not taxidermy