537.414 miles per hour

A nautical mile measures distance and a knot measures speed. It is slightly more than a statute (land measured) mile (1 nautical mile = 1.1508 statute miles ). A knot is one nautical mile per hour (1 knot = 1.15 miles per hour ).

Planes and ships follow navigation routes so they use nautical distance as a measure – one nautical mile equals 1 minute (1/60 of a degree) of the circumference of the earth, or about 1.15 statute miles. A knot is equal to one nautical mile per hour.

Europe uses imperial for distance (nm), speed (knots) and altitude (feet). Russia and China are the only major countries that use meters for altitude – and it causes all sorts of confusion. Some aircraft (more in europe) use kilometers and statute miles/hour on the ASI – but the same is true in the US.

Because of the proliferation of American and British aircraft during the early years of aviation, the imperial foot became standard for altitude measurement. China (PRC), North Korea, and Russia, however, use meters for altitude measurement. The altimeters in our aircraft are calibrated in feet.

Military. The U.S. military uses metric measurements extensively to ensure interoperability with allied forces, particularly NATO Standardization Agreements (STANAG). The Navy and Air Force continue to measure distance in nautical miles and speed in knots; these units are now accepted for use with SI by the BIPM.

The term knot derives from its former use as a length measure on ships’ log lines, which were used to measure the speed of a ship through the water. Such a line was marked off at intervals by knots tied in the rope. Each interval, or knot, was about 47 feet (14.3 metres) long.

Treatment

1. Rest. Allow your body to rest if you have muscle knots.
2. Stretch. Gentle stretching that elongates your muscles can help you to release tension in your body.
3. Exercise. Aerobic exercise may help to relieve muscle knots.
4. Hot and cold therapy.
5. Use a muscle rub.
6. Trigger point pressure release.
7. Physical therapy.

Use your fingers (or tools like foam rollers and massage balls) to press firmly into the trigger points. Repeat for three to five minutes, ideally as often as five or six times per day. “It needs to be part of the daily routine,” Dr. Adams says.

The difference between lymph nodes and lumps is that the lumps are typically movable, soft and feel sore and/or painful. You might even observe some skin reddening where the lumps originate. Swollen lymph nodes appear very fast, but breast cancer lumps grow a lot slower.

How can I tell if my pain is a ‘muscle knot’? A knot, or trigger point, may feel like a small hard lump. These may be felt with just a soft touch, some may reside in your deeper layers of soft tissue. A trigger point can form anywhere in the body where there is skeletal muscle and fascia.

Knotted muscles will feel hard to the touch; they can be as small as a grain of rice or as large as a pebble, but they are invariably uncomfortable and tender to the touch. When you press on muscle knots, you may feel pain radiating up towards your head and down towards your scapular region and shoulders.

If you have a knot in your neck, try massaging the area with your fingers and applying heat or ice. Do therapeutic neck exercises, like shoulder shrugs, or stretches, like head-to-hand release and Cat-Cow. When done regularly, these moves may help relieve the pain and tension of a knot.

Side Rotation

1. Keep your head squarely over your shoulders and your back straight.
2. Slowly turn your head to the right until you feel a stretch in the side of your neck and shoulder.
3. Hold the stretch for 15-30 seconds, and then slowly turn your head forward again.
4. Repeat on your left side. Do up to 10 sets.

Keep moving, but avoid jerking or painful activities. This helps calm your symptoms and reduce inflammation. Do slow range-of-motion exercises, up and down, side to side, and from ear to ear. This helps to gently stretch the neck muscles.

Here’s how:

1. Step 1: Find the sore spot.
2. Step 2: Push into the knot with your fingers, using firm pressure.
3. Step 3: Turn your head slightly in the direction opposite the cramp, and bend it diagonally, as if you were trying to touch your armpit with your chin.
4. Step 4: Repeat steps 1 through 3 about 20 times in a row.

Tightness in the front of the neck can occur as a result of allergies, inflammation, or infection. It could also occur in response to a digestive upset, such as heartburn or GERD. Some causes of tightness in the neck may go away without the need for medical treatment.