The curve that is used in bridges and over doorways is an arch. An arch is the curved part that is over an opening and it helps support the weight above the opening.
people hang holly over their doorways because it represented the crown of thorns Jesus wore when he was crucified.
A curve is so strong because when you apply a force on top of the curve the weight of that forced is transferred to the bottom parts of the curve which makes it really strong like bridges that use arcs
There are over 1,500 bridges in Amsterdam.
There are over 200 bridges crossing the Thames.
10 bridges cross the tyne from the A1 bridge to the millenuim bridge.
Doorways in the Sand was created in 1976.
Doorways to Space was created in 1951.
There are well over 100 bridges across the River Thames.
Bridges over polluted waters as the song goes
Doorways in the Sand has 181 pages.
Doorways to Space has 206 pages.
Amsterdam has over 1,500 bridges in total.