Archive for December, 2009

Weather Instruments

Weather Instruments

Logically, watching weather conditions in your area is very basic day to day thing aside from receiving them technologically on television, on your cellphone, or the radio or thru e-mail or pager. Being able to know the upcoming weather helps you in a lot of ways from taking care of your garden or livestock to what to wear before venturing out of your home. The most basic weather device is the cup anemometer. It consists of three or four small hollow cups or hemispheres fixed in a particular manner so they catch the wind and are set on a vertical rod. The wind velocity is measured by the number of revolutions of the cups which is transmitted to an electrical device. This basic weather instrument can be easily made by almost anybody as long as you have the materials needed. The rotating cups should be of the same size to ensure even rotations resulting to more accurate data. The vertical rod used for the rotating cups should be straight and strong enough to hold the weight of the rotating cups so it would be sturdier. The most common problem is the contact point between the rotating cup part and the vertical rod. A bicycle bearing could be used instead of plain metal ring. Therefore, it minimizes friction between contact points and ensuring smooth rotations and a much more accurate data.

Since our technology is much more advance today, devices or advance weather instruments are now being made and promoted. Making a miniature weather station in your own home. But advanced as they are so are their technical problems. Home weather stations now can record temperature, humidity, air pressure, wind strength and direction, and rainfall in one small device. A total whopper for gadget gizmos. But wires can be a hassle crisscrossing across your ceilings and walls down to your electrical equipment not to mention the hassle of letting the wires across to where you want the equipment placed. Sometimes it limits you to only how long the wires the equipment gives. So choosing a wireless home weather station would take all that hassle away. A next technical problem is the radio range. It affects your data and sometimes it has government restrictions thus making your data slow and unreliable. Other times finding the right place and position of the sensor is time consuming and very stressful because you have to consider trees and other buildings even the room that you put the receiver in should be considered. Could be the wall be too thick or is there one wall too many. Having a radio frequency range of at least 300 ft or 91m or more would solve this problem. Another sun being directly in contact with your temperature sensors affecting temperature readings. of course shielding the sensors from direct sunlight would change all that. The most basic problem is the installation of the weather device. You might end up hiring a technician to do the job not wanting to destroy the equipment instead which obviously will cost you unnecessarily. So choose one that is easy to install.

More Weather Instruments Articles

All About News Networks in Hawaii

All About News Networks in Hawaii

Hawaii, which can be described as one of the most spectacular places on planet earth, is also a place where people prefer to spend their vacations and break off from their routine life. However one need not feel that they will be completely cut off from the rest of the world while spending their vacations in Hawaii.
This is one region which has a very good Hawaii internet news network and environment news service for the aid of people. A large number of people who need to access internet for business or entertainment purpose can heave a sigh of relief. While vacationing in Hawaii, they won’t be left cut off from the rest of the world and internet, courtesy internet news network, Hawaii.
People located in Hawaii can now have access to the latest facilities and high speed internet in a jiffy. Moreover people can have access to internet facility even on their wireless phones, laptops and other GPRS enabled wireless devices. This has been possible because Hawaii has a well and evenly distributed network of cell sites and bolsters coverage throughout.
Individuals can have access to world news and know about the latest happening around the world easily, with the help of Hawaii internet news networks which are highly efficient and provide premium service throughout the country. The climate in Hawaii is very unpredictable one. It could be bright and sunny one moment, while raining cats and dogs in the next moment. In such situations, it becomes extremely important to have crucial weather forecasts made available to the people here. Networks, such as environmental news network in Hawaii are some of the best news network organizations which provide people with reliable weather predictions and news all through the day.
Hawaii is a region which has a well-versed connection of local news networks which make sure that even the smallest detail about Hawaii local news and environmental news network is made available to the viewers instantly. Local news, on a plethora of topics, such as everyday happenings, crime rate, latest occurrences, changes in the society are well covered by these Hawaii local news channels in an impeccable manner.
Apart from covering the local news, Hawaii news network also bring about a host of information on a number of topics, such as local and international sports, business, classifieds and advertisements. Hawaii is a region which is frequently subjected to eruption of volcanoes. The latest updates about volcanoes, too are reported in the news channels under the section of environmental news section. The environmental news service being provided by Hawaii news networks helps to alert the masses about the various areas which should be strictly avoided for the fear of volcanoes or the regions which can be visited owing to their pleasant weather.
There are a number of mediums available when it comes to Hawaii news networks. Some of the most popular mediums available include the internet which is available for the masses all year around, at any and every time of the day. Other mediums include the cable television, weather announcements and updates on the radio and newspapers which are widely circulated all over the region.

Ronnie Williams anchor and newscaster of internet-based television network Pacific Network TV shows Native Hawaiian Cultural TV, Hawaii-themed original programs, Pacific Region News, Hawaiian Cultural Channel on their Native Hawaiian Portal.

Tornado Tubes

Tornado Tubes

  • Simple, yet clever 1″ dia. by 3″ long plastic device to demonstrate the vortex effect of a tornado. Partially fill with water one of the two half-gallon size plastic soda bottles which you supply. Screw the bottles into opposite ends of the tube which we supply.
  • Tip so the full bottle is on top and give it a circular starting whirl. Presto! You have a vortex. Call it a tornado if you’re a meteorologist, a Charybdis if you’re a classicist, or a whirlpool if you’re into oceanography.
  • Lots of fun and a fine opportunity to attempt to explain the effects of the earth’s rotation on water draining out of a bathtub. The phenomena are related we’re told, but good luck!!

Two 2-liter bottles plus one tornado tube = one tornado! Reuse plastic bottles to create a mesmerizing tornado! Kids gather around to see the whirling action. Tornado Tubes A great hands-on tool for demonstration of vortex action Worthwhile addition to a “weather” unit Fits standard soda bottles Add glitter or food coloring for impressive tornado action Sturdy and durable science toy Comes with complete instructions Ages 5+ Note: Color will be selected randomly at the time of s

Rating: (out of 8 reviews)

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Cool Severe Weather images

Some cool severe weather images:

Darkness descends upon the lake
severe weather

Image by DrStarbuck

severe weather area
severe weather

Image by kalavinka

A storm rolls in
severe weather

Image by DrStarbuck

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