he invented airfoil
They felt like it.
to teach geography
a remote control
You don't. Such an efficiency can be less than 1, but it can't be greater than 1.
1889
Arthur James Arnot died in 1946.
Arthur James Arnot died in 1946.
Arthur James Arnot was born on August 26, 1865.
Arthur James Arnot was born on August 26, 1865.
Yes, he was an Australian electrical engineer who invented the electric drill.
Harry & Jack McLaren invented the Surf Ski in 1912. Lance de Mole invented the tank in 1912. Arthur James Arnot invented the electric drill in 1889. Louis Brennan invented the underwater torpedo in 1874.
James Arnott has written: 'The house of Arnot'
He was not known to invent anything.
Bob Arnot's birth name is Robert Burns Arnot.
Rikki Arnot's birth name is Rikki Lee Arnot.
Hugo Arnot died in 1786.