ထင္ရွားေက်ာ္ၾကား အင္ဂ်င္နီယာမ်ား

Adams, William Bridges (1797-1862)
Inventor of the railway fishplate.

Agrippa, Marcus Vipsanius (63-12BC)
From 34BC he was in charge of Roman aqueducts. He also built the Roman Pantheon in 27 BC and the Pont du Gard, a high level aqueduct which brough water to Nimes, in 18BC.

Armstrong, William George, Lord (1810-1900)
A specialist in power hydraulic , who built possibly the first hydraulic accumulator in 1851, founder of the firm of Sir W.G. Armstrong Whitworth & Co.

Arnodin ,Ferdinand-Joseph (1845-1924)
French civil engineer, pupil of Marc Seguin and heir to his firm. He designed many bridges carried on steel-wire ropes, including probably the first transporter bridges, His first was in northern Spain at Portugalete, near Bilbao over the River Nervion, of 160m(525ft) span. He built others at Bizerta(Tunis) , Rouen(the first in France), Bordeaux, Marseille (1905) and Rochefort. His ropes with alternate layers twisting in opposite directions may have been the origin of locked-coil ropes.

Arup, Ove nyquist (1895-1988)
 Founder of Ove Arup & Partners and of Arup Associates, probably the largest consulting practice in the western world has responsible for Sydney Opera House and much else.

Aspdin, Joseph(1799-1855)
Patented Portland cement in 1824, the year when Vicat in France was already building his first bridge with a hydraulic cement.