The Lieutenant-Colonel Portlock experiment used oxy-hydrogen Drummond’s lights and heliostats to reflect the sun’s rays across stations set up across…
In a 19th century French experiment by M. M. Biot and Arago a powerful lamp with good reflectors was placed…
The Manchester Ship Canal Company published in the Earth Review stated, “It is customary in Railway and Canal constructions for…
A surveyor and engineer of thirty years published in the Birmingham Weekly Mercury stated, “I am thoroughly acquainted with the…
The London and Northwestern Railway forms a straight line 180 miles long between London and Liverpool. The railroad’s highest point,…