Ship's Hull Tendency Barometer

You can forecast weather just like 17th Century mariners did with this wall mounted Ship's Hull Tendency Barometer. Glass tubes are positioned above a model sailing ship's wooden hull. We understand that barometers measure atmospheric pressure, but what exactly is a tendency barometer?

The tendency barometer was patented on December 23, 1818 by Alexander Adie, a Scottish optician, calling it a Sympiesometer. Sir James Clark Ross used it on his expeditions. The tendency barometer consists of two liquid filled tubes mounted parallel to each other. The barometer tube is in a U-shape, which is open-ended and filled with a red fluid, and a closed thermometer tube is filled with a blue fluid. You can predict the weather with glance across the room:

• When the fluid levels are equal, the weather is changing.
• When the red fluid level is below the blue fluid level, the weather is fair since high pressure pushes the red fluid down in the tube.
• When the red fluid level is above the blue, stormy weather is predicted as low pressure allows the red fluid to rise in the tube.

The Ship's Hull Tendency Barometer would make a tremendous Father's Day gift. It comes fully assembled on a frosted-glass frame and sturdy hanging hardware is included.

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How to Forecast the Weather Without Electronic Gadgets

While we love our electronic weather gadgets, it's important to learn to predict the weather on our own too. Nature actually tells us a lot of what we need to know if we pay attention and can read the signs.

We found a quick primer on the basics over at the Art of Manliness, Forecast the Weather Like Daniel Boone covering Cloud Signs, Proverbs That Stand the Test of Time and Tools of the Trade: The Barometer, which should interest you if you are a budding or seasoned weather buff.

While we can observe cloud signs and memorize the weather proverbs as the above article recommends, in order to predict accurately we really need to measure atmospheric pressure. So yes, a barometer is a gadget, but not an electronic one. Once we have our barometer, we then need to be able to interpret it. The aforementioned article provides a barometer reference card (below), taken from Skills for Taming the Wilds by Bradford Angier.

Continue reading: "How to Forecast the Weather Without Electronic Gadgets"

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Chaney Instrument Galileo Thermometer with Glass Globe Barometer

Place one of these eye-catching Galileo units on your desk or bookshelf. It will surely be noticed. This Galileo Thermometer with Glass Globe Barometer from Chaney Instrument blends old and new technology to provide your desktop weather report. The entire unit is mounted on a wood base.

How does it work? A Galileo thermometer is filled with a clear liquid that suspends multiple colored weighted glass bubbles. As the liquid within the bubbles changes temperature, their density also changes, allowing the weights to rise or fall and thus creating a gauge.

The glass water barometer responds to changes in the air temperature. Fair weather is indicated by a low fluid level in the glass spout while a higher fluid level in the glass spout means inclement weather is in your future. This decorative barometer features a lovely etching of our Earth's continents.

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3-in-1 Solar Barometer

Conserve energy and measure the temperature, humidity and barometric pressure with this 3-in-1 Solar Barometer. It absorbs the sun's energy (free, last time we checked) to power functions. Plus, it's good--looking. It's made of stainless steel for a sleek appearance and years of dependable use.

Save 15% off your purchase of $75 or more. Use code: LNKWW15.

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Nassau M60 Aneroid Barometer - Perfect for Boats

M60 Aneroid Barometer Uses German made twin-cell pressure sensor for highest accuracy. No power is required for operation. The calibrated at the factory using a high quality pressure chamber to set the readings so that it arrives at your door fully ready for operation. Specify altitudes over 2000 feet

Designed and manufactured for professional use, the Nassau line of instruments have been used extensively by numerous agencies such as the US Navy and the US Coast Guard. It has also been used at FAA approved airports, and in many industrial and research applications. These instruments are designed to provide high accuracy and trouble-free operation. They will provide years of continuous service. Their appearance is one of class and elegance. If you are looking to outfit your boat, beach house, den or office with instrumentation that says "quality" at a glance, then these are the units for you.

At M60

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How a barometer measures air pressure

We found this article at USA Today very informative on how a barometer works.

Air pressure and differences in pressure are among the most important weather makers.

The centers of storms are areas of relatively low air pressure, compared to pressures around the storm. High air pressure generally brings good weather. Keeping track of how the pressure is changing is important for forecasting the weather.

Differences in air pressure between places cause the winds to blow - air moves from high toward low pressure.

The instruments that measure air pressure are called barometers, from Greek words for weight and measure.

At USATODAY.com

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Phillipe Starck Radio-Controlled Clock with Barometer

We like all things Phillipe Starck, and we especially like this alarm clock with barometer for a 12-24 hour forecast. With a sleek form and color that can only be the work of widely-acclaimed French designer Philippe Starck, Oregon Scientific's Starck Collection presents the perfect blend of contemporary design and high tech weather monitoring. The barometer features easy-to-read weather forecast symbols (sunny, partly cloudy, cloudy and rainy), and graphical trend indicators (rising, falling, or steady). An optional altitude compensation setting (-100 m to 2500 m) keeps weather forecasts accurate at lower and higher elevations. Oregon Scientific's HiGlo backlight ensures easy night-time viewing.

• Displays barometric pressure, humidity and temperature trends
• Graphical trend indicator (rising, falling, or steady),
• Optional altitude compensation setting (-100 m to 2500 m)
• Clock synchronizes with US Atomic Clock

At Phillipe Starck Radio-Controlled Clock with Barometer

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Vermont Copper Wall Barometer - A Lifetime of Weather Forecasting

Sometimes I wonder why we have to cover all the high tech solutions for weather forecasting when the tried and true indoor weather barometer will tell you the forecast with ease. You can use this copper Vermont Wall Barometer to find out the weather any time. Simply align the indicator hand with pointer and monitor the change. Forecasts the weather 12 to 24 hrs in advance which for most of us is plenty. The large 8.25 inch diameter face is easy to read, and best of all guaranteed for life!

At Vermont Copper Wall Barometer

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Weems & Plath Weather Station

An elegant piece for your home or office. This weather station has the 3 traditional brass instruments on a finished mahogany plaque. A quartz clock for accurate timekeeping, a barometer to track changing air pressure, and an accurate thermometer and hygrometer to monitor temperature and humidity. All instruments have a 2.5'' dial with highly polished brass cases. Includes an ''AA'' alkaline battery for the clock plus lifetime warranty for the entire weather station.

At Weems & Plath - NEW! Weather Station

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