Belfort Instrument, Weather Prediction System

Author: Mansi Aggarwal
Sound health and excellent fitness is recently gaining primary concern for people from every walk of life. As fitness becomes a major issue for everyone it is not possible for all to manage time daily to visit local gyms. With urbanization being prevalent in entire communities’ access to big jogging grounds in near locality might only be a dream. Yet a desire to exercise and find ways to attain, in shape fit bodies is existent widely.

Home fitness equipments offer best alternative to costly gyms sessions and rare public parks. Among the numerous benefits offered by home fitness machines is the availability of equipment at any time of day that suits you. One does not need to follow difficult timings of the instructor in the fitness center. An in house facility enables one to practice fitness sessions without hampering their job responsibilities. Public fitness studios regularly charge expensive memberships even if a person is not attending the sports club he is supposed to pay his membership fees in due time. Personal fitness equipments are only a one time expense they do not require any recurring expenditure they are free to use at anytime of the day and also till any time span desired by its owner. Occasional lengthy workout sessions would be costly due to extra time involved but machines at home are forever available. Equipments at home are also a pride for its owner and the owner can boost in front of guests by occasionally allowing them to utilize exercising machines.

Treadmills are the most popular among home exercise devices as it appeals equally to both young and elderly. One can practice regular walking or jogging routines on a treadmill even if the weather is bad outside. The equipment comes with various motorized setting that would be suitable for everyone. Latest machines have a body fat monitor enabling people to actually monitor their progress. A strap to measure heart rate comes free and handy with the device that is a convenient source to professional evaluate ones present heart rate. Surveys conducted reveal that treadmills sales are the fastest growing commodity among fitness equipments in U.S.

Elliptical trainers are popular home based exercise equipments. It gives a perfect gym feel and comes with sophisticated computers that provide different programs heart rate control and fitness tests. It provides a perfect alternative to health clubs when managing time to reach there is difficult and results in irregular fitness sessions. Getting on an elliptical trainer within ones house is easier than driving all way towards health centers. Pedals on the machine are adjustable so that different users in house ranging from children to elders all are equally comfortable on it.

Exercise bikes are a favorite among adults and children alike. It gives a unique experience like exercising outdoor. Computers installed in the machine accurately inform about the present rate of exercising. Also the comfortable seat along with dual action handles of the cycle ensures maximum comfort to person using it.

Rowing machines are unique in a sense that they provide exercise option for both lower and upper part of the body. Its adjustable settings make it convenient to exercise as hard or as easy according to ones will. Even this allows monitoring progress of the person while exercising.

Author: Dave Bello
Knowing the direction of the wind is one of the most important aspects of sailing properly and safely. Trimming sails correctly, identifying points of sail, and executing procedures such as man-over-board and heaving-to, for example, all require knowing the direction of the wind. Yet, many beginners find it very difficult to find the source of the wind direction. Moreover, even when they do find the correct wind direction, it is a very time consuming process.

This article describes typical mistakes made by beginning sailors and then introduces a simple and reliable method to find the direction of the wind quickly while sailing. The observations and suggestions in this article were generated during the sailing lessons taught at Fair Wind Sailing School.

Common Mistakes

Beginning sailors typically make two common mistakes when attempting to identify the wind direction. The first is to stare at the wind instruments and solely rely on the instruments to reveal the source of the wind. While instruments can be a valuable aid to navigation, prior to the development of basic sailing skills are developed, they can often be confusing and even misleading.

Our experience has been that the wind instrument is usually the worst place to find the wind direction for a beginning sailor. First, reading a wind instrument may not be intuitive to the new sailor. It is quite common for new sailors to misread the instrument confusing true versus apparent wind or even misreading the directional arrow of an analog wind gauge. Even more concerning is that — as any experienced sailor will testify — wind instruments are typically wrong. Calibration issues, slow response times, shifting winds and knowing how to switch between true and apparent readings all contribute to wind accuracy readings that are far too often different from the actual conditions. This is especially true for lower cost wind instruments.

Even if the wind instrument is reading correctly, it can take the beginning sailor a long time staring at the wind instrument to read it correctly. While staring at the instrument, the helmsman is not looking out. It is quite common, again particularly for a beginner, to turn the boat when not looking ahead. As the helmsman unknowingly turns the boat, the direction of the wind appears to turn too. Of course, this is not the true weather conditions, and it further complicates the first challenge of finding the direction of the wind.

When taken in combination, the issues of long periods of staring the electronics rather than sailing the boat, slow responses to shifting wind and potential mis-calibrations, the wind instrument is quite possibly the worst way to try and find the wind direction quickly for the beginning sailor.

The mast head fly is a step better than the wind instrument. Since it always reads the apparent wind, the mast head fly eliminates one of the issues inherent with wind instruments, like figuring out if you are looking at true or apparent wind. However, looking up at the mast head to quickly identify prevailing wind direction is also difficult for new sailors. Similar to staring at wind instruments, long periods looking straight up at the top of the mast make steering a boat straight very difficult for newcomers. Again just like looking at the wind instrument for long periods, what appears to be a shifting wind can be nothing more than the boat turning. In summary, while better than the wind instrument, reading the wind direction quickly from the mast head fly can be a trickly and time consuming endeavor the new sailor.

A third common mistake for beginners is to over think the situation. Typically, this occurs with confusion between true and apparent wind and trying to estimate one from the other. When starting out, newcomers can simplify the situation by remembering that we feel only the apparent wind. Since we also trim sails and run the boat to apparent wind, this is the only wind data point we need. It is the apparent wind, then, that we are looking for and that we can feel. For the beginner, focus on the apparent wind and forget the true wind to simply observations and speed you decision making.

A Simple and Easy Method To Identify Wind Direction

To identify the wind direction, we need a method to avoid the common mistakes. This means first of all, ignoring the instruments. Instead, we will identify the wind direction the old fashion way — we will feel it. To feel the wind, we will also need minimal distraction. We accomplish this by closing our eyes, too! It may sound counter-intuitive to close your eyes when steering a sail boat, but we will only need a second or two with this procedure, and closing your eyes for a second or two is far better than staring at instruments for long periods.

The total procedure is very simple, close your eyes, feel the wind on your cheeks and turn your head until you are looking directly into the wind. You’ll be amazed that in a second or two you’ll be able identify the wind direction accurately nearly 100% of the time. Fast and accurate — exactly the procedure we are looking for!

Summary

In summary, to accurately and quickly identify the wind direction, ignore the instruments and use your senses. By closing your eyes and feeling the wind on your face, you’ll be able to quickly and accurately identify the wind direction nearly 100% of the time in seconds.