The witness said he did not hear any irregular engine noise when the helicopter went past and the height and speed of the craft were normal.

BBC: Colin McRae's neighbour describes helicopter crash

The mast was installed in April to measure wind speed, wave height and sea currents.

BBC: Offshore Sussex wind farm weather mast causes 999 calls

Using the footage and the location of an impact into Lake Chebarkul, Jorge Zuluaga and Ignacio Ferrin, from the University of Antioquia in Medellin were able to use simple trigonometry to calculate the height, speed and position of the rock as it fell to Earth.

BBC: Russia meteor's origin tracked down

Although Raytheon would not give details of the height, speed and range of the UAVs, saying that data "sensitive", it did say that the Navy wanted tests to be as realistic as possible, suggesting that the aircraft were behaving in the way military planners would expect them to.

BBC: Anti-aircraft laser unveiled at Farnborough Airshow

Blessed with height, great speed and an impressive arm, Pryor reminded many of former Texas Longhorn great Vince Young (more on him later), including the Longhorns who aggressively recruited him.

FORBES: What Terrelle Pryor and Tim Thomas Tell Us About Success

The software in the four-seater Piper Warrior light plane will allow Mr Cunningham to receive constant updates on the plane's height, position and speed at the touch of a button.

BBC: NEWS | UK | England | Oxfordshire | Blind pilot on target for record

It fired a sonic pulse at the ground and used the speed of the returning echo to calculate our height.

NPR: Excerpt: 'Skybreaker'

In Wisconsin, the outgoing governor Jim Doyle claimed over 4, 700 jobs directly related to the high-speed rail line between Milwaukee and Madison would have been realized at the height of construction.

CNN: High price derails some U.S. bullet trains

I've discovered that half of the platforms at Stratford International are not the right height and are being raised to make them suitable for the High Speed (HS1) Javelin trains.

BBC: Stratford platforms raised to host Javelin trains