Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Solar flare erupting from the surface of the Sun. This coronal mass ejection (CME) event occurred on 31st August 2012, and was recorded at wavelengths of 171 and 304 angstroms by NASA's Solar Dynamics Orbiter (SDO). The huge plume of solar material was thrown from the Sun at some 900 miles per second (1450 kilometres per second). It was not directed at Earth, although it did interact with Earth's magnetic field, producing an auroral display on 3rd September.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tacoma Narrows Bridge collapse on 7 November 1940. This road suspension bridge spanned 1810 metres across the Tacoma Narrows strait in Puget Sound, Washington, USA. It opened on 1 July 1940, but collapsed just four month later due to oscillations caused by aeroelastic flutter in 67 kilometres-per-hour gale-force winds. The oscillations produced waves several metres in height, increasing and undulating along the bridge until the eventual collapse. There were no casualties except a dog trapped in a car stranded on the bridge. A rescue was attempted by US engineer Frederick Bert Farquharson but the frightened animal would not leave the car.

Tornado as seen from a stormchasing car. Filmed on 16th June 2014 in Nebraska, USA.