Human-defined Scales and Structures
- 10 metres — wavelength of the highest shortwave radio frequency, 30 MHz
- 23 metres — height of the obelisk of the Place de la Concorde, Paris, France.
- 25 metres — wavelength of the broadcast radio shortwave band at 12 MHz
- 29 metres — height of the lighthouse at Savudrija, Slovenia.
- 31 metres — wavelength of the broadcast radio shortwave band at 9.7 MHz
- 34 metres — height of the Split Point Lighthouse in Aireys Inlet, Victoria, Australia.
- 40 metres — average depth beneath the seabed of the Channel tunnel
- 49 metres — wavelength of the broadcast radio shortwave band at 6.1 MHz
- 55 metres — height of the Leaning Tower of Pisa
- 60 metres — height of Pyramid of Djoser
- 64 metres — wingspan of a Boeing 747-400
- 70 metres — length of the Bayeux Tapestry
- 70 metres — width of a typical football field
- 88.40 metres — wingspan of the Antonov An-225 transport aircraft
- 100 metres — wavelength of the lowest shortwave radio frequency, 3 MHz
Read more about this topic: 1 Decametre
Famous quotes containing the words scales and/or structures:
“In what camera do you taste
Poison, in what darkness set
Glittering scales and point
The tipping tongue?”
—Wallace Stevens (1879–1955)
“It is clear that all verbal structures with meaning are verbal imitations of that elusive psychological and physiological process known as thought, a process stumbling through emotional entanglements, sudden irrational convictions, involuntary gleams of insight, rationalized prejudices, and blocks of panic and inertia, finally to reach a completely incommunicable intuition.”
—Northrop Frye (b. 1912)