The tunnel has been listed on the National Register of Historic Places since 1989.

Salt-accelerated corrosion has caused ceiling light fixtures to fail ( see below ), but can also cause rapid deterioration of embedded rebar and other structural steel reinforcements holding the tunnel walls and ceiling in place.

This partial removal of hazards has been criticized by a safety specialist, who suggests that the handrails are just as dangerous in straight sections of the tunnel.

Since its construction, the tunnel has faced several problems.

The skyblazer team has completed wind tunnel, stability and control testing and flown a 1 / 6 scale model.

Michael Grumley a cryptozoologist has linked Bigfoot and other hominid cryptids to ancient tunnel systems underground.

For instance, Kane's entrance graphics employ heavy use of fire-themed visuals, John Morrison's entrance would feature use of multicoloured psychedelic style patterns, The Miz has in the past incorporated inflatable lettering spelling out the word " AWESOME " into his entrance, and Montel Vontavious Porter frequently used an inflatable entrance tunnel during his WWE tenure.

The line was intended to continue from Epping to Parramatta, incorporating the existing Carlingford line, but this section has been postponed indefinitely, though a stub tunnel has been constructed at the northern end of Epping station.

The original octopus idea was conceived by cave-diving pioneer Sheck Exley as a way for cave divers to share air while swimming single-file in a narrow tunnel, but has now become the standard in recreational diving.

The Eskişehir-Istanbul section of the line is scheduled to be completed by 2012, and includes the Marmaray tunnel which will enter service in 2012 and establish the first direct railway connection between Europe and Anatolia. Second high-speed rail line, which has length of 212 km between Ankara and Konya become operational in 2011.

Since its completion, the UPWT facility has been the most heavily used NASA wind tunnel.

The facility has three separate driver configurations, to meet a range of test requirements: the driver can be connected to a diaphragm station of either a or a shock tube, and the high-pressure shock tube can also drive a shock tunnel.

Michael Einziger had been suffering from Carpal tunnel syndrome and although he had an operation that has corrected the problem, he needed to recuperate for a few months, hence recent tour plans were postponed.

It has also been stated that symptoms are commonly exacerbated by forceful and repetitive use of the hand and wrists in industrial occupations, but it is unclear as to whether this refers to pain ( which may not be due to carpal tunnel syndrome ) or the more typical numbness symptoms.

* Parvovirus b19 has been associated with carpel tunnel syndrome

The potential role of B-vitamins in preventing or treating carpal tunnel syndrome has not been proven.

There are several carpal tunnel release surgery variations: Each surgeon has differences of preference based on his or her personal beliefs and experience.

Despite these views, some surgeons have suggested that in their own hands endoscopic carpal tunnel release has been associated with a higher incidence of median nerve injury, and for this reason it has been abandoned at several centers in the United States.

The use of endoscopic carpal tunnel release has continued to spread around the world and clinical and nerve electrophysiological states are significantly improved at the long-term follow-up after endoscopic carpal tunnel release.

Surgery to correct carpal tunnel syndrome has a high success rate.

If a person has hand pain after surgery, it is most likely not caused by carpal tunnel syndrome.

It may be the case that the illness of a person with hand pain after carpal tunnel release was diagnosed incorrectly, such that the carpal tunnel release has had no positive effect upon the patient's symptoms.

On 6 December 2007, it was announced that extensive plans to build Stonehenge road tunnel under the landscape and create a permanent visitors ' centre had been cancelled.

Historically tolls have been used to pay for public bridge, road and tunnel projects.

Another possibility, suggested by Frederick Zugibe, is that the nails may have been driven in at an angle, entering in the palm in the crease that delineates the bulky region at the base of the thumb, and exiting in the wrist, passing through the carpal tunnel.

Studies have been done and others are under way to assess future military and commercial wind tunnel needs, but the outcome remains uncertain.

Instead, multiple methods of both quantitative and qualitative flow visualization methods have been developed for testing in a wind tunnel.

A rocket sled is reported to have been used in the closing days of World War II by the Germans to launch a winged A4b strategic rocket from an underground tunnel on, 1945.

Unbeknownst to work crews aboard a barge operated by the Great Lakes Dredge and Dock Company, beneath the river was an abandoned Chicago Tunnel Company tunnel that had been used in the early 20th century to transport coal and goods.

But, reportedly, Palmer suffered from carpal tunnel syndrome in one hand and Emerson had been treated for a repetitive stress disorder.

Numbness in the distribution of the median nerve, nocturnal symptoms, thenar muscle weakness / atrophy, positive Tinel's sign at the carpal tunnel, and abnormal sensory testing such as two-point discrimination have been standardized as clinical diagnostic criteria by consensus panels of experts.

Suggested healthy habits such as avoiding repetitive stress, work modification through use of ergonomic equipment ( wrist rest, mouse pad ), taking proper breaks, using keyboard alternatives ( digital pen, voice recognition, and dictation ), and employing early treatments such as taking turmeric ( anti-inflammatory ), omega-3 fatty acids, and B vitamins have been proposed as methods to help prevent carpal tunnel syndrome.

Renewed calls for either a tunnel or a bridge have been made by politicians in recent years.

The cave had been excavated by the stream that fed the cascade, which had since been diverted by the men of Gondor to fall from doubled height ; the tunnel had been sealed, except for a concealed entrance along the brink of a deep pool beneath the waterfall .</ div >

During these tests a full-scale missile model fitted with a live PSS would be mounted on a moveable strut in the wind tunnel, allowing a series of incidence and sideslip manoeuvres to be conducted over the full duration of the PSS operation.

In use, the shield was inched forward as the working face was excavated, while behind it a permanent tunnel lining of cast iron segments was fitted into place, itself an important innovation.

: At the base of the east wall, and about twenty feet from the Cary street front, was discovered a tunnel, the entrance to which was hidden by a large rock, which fitted the aperture exactly.

For the opening of the line, nine powerful 0-6-4 tank locomotives were obtained from Beyer, Peacock and Company, fitted with condensing apparatus for working in the tunnel.

The resulting Sunbeam Lotus was based on the Sunbeam 1. 6 GLS, but fitted with stiffer suspension, larger anti-roll bar and a larger transmission tunnel.

These sections were then brought to the Black Falcon Pier near the site and each was fitted with a large surrounding mass of concrete ( so that the tunnel section was more neutrally buoyant ).

The solution was a unit that had the tailhook fitted to it in the middle in a tunnel that was powered by two aircraft type jet engines that powered the unit on a one mile run.

It was similar to the L42A1, except it was fitted with Parker-Hale target tunnel front and micrometer-adjustable rear sights in lieu of the telescopic sight, and the butt had a curved pistol grip similar to the butt used on the No. 8. 22 rifle.

The Eastern tunnel was closed in December 2008 until March 2009 for a security entry system to be fitted.

The Western tunnel was closed in September 2009, apparently so it can also have security gates fitted.