Thursday, December 21, 2017

Wood Working

Wood Working - Photo: Pixabay
Woodworking is a method of building, carving or making something using wood. Wooden products are seen everywhere these days. If you want to enhance the appearance of a room in your home,  then there is no doubt you can find something made of wood.

It requires a great amount of skill to make quality handmade wooden products.

Basically wood is of 3 types. They are hardwoods that are obtained from deciduous trees, man-made materials that include plywood and softwoods that are obtained from evergreen trees. There are many woodworkers who have made a mark in woodworking by building some of the finest architecture, furniture. Some of the popular woodworkers of all times are Alvar Aalto, Norm Abram, and John Boson. 

Today woodworking tools are used most commonly to make furniture in the house. You will also see a variety of woodworking tools at construction sites. Most woodworking tools are power driven. Some of the common woodworking tools that are commonly used on construction sites are chainsaws, nail guns, rotary tools, routers, biscuit jointer, and sanders. 

For inserting a nail into the wood you should use a nail gun. A woodworking tool is used for cutting polishing, carving, sanding and for many other applications. Without these woodworking tools, you simply cannot make a wood product. All these tools are easily available in the market.

Before operating these tools you should have good knowledge about how to use these tools. If you don’t have proper knowledge, could cause you injury and the end result will look funny. Generally, skilled workers such as carpenters, train for years to a high standard to handle tools efficiently enough to produce quality products.

These tools are commonly used to make products such as cabinets, chairs, dining tables. And the better quality of wood used and top craftsmanship, you can expect the price to match!



Wednesday, December 20, 2017

The History of ASTRONOMY

Florinus Astronomy 1705 - Photo: Wikimedia
If you have a passion for stargazing, telescopes, the Hubble and the universe and this thing we call “astronomy”, you are far from alone.  Of course, we know that astronomy is a highly respected science that has produced some of the most amazing accomplishments of the twentieth century.  On top of that, it is a thriving area of fascination and one of the most exciting hobby areas going with thousands of astronomy clubs and tens of thousands of amateur astronomers watching the stars every night just like we do.

But did you know that astronomy is one of the oldest and most respected sciences of them all?  As far back as before the times of Christ, the wise and thinking people of societies of the time were looking at the stars and finding ways to track and chart them.  We who love the hobby of astronomy can chart a proud history of astronomers that tracks across millennia and through virtually every culture in civilization.  So for the sake of having some really good trivia to toss around at astronomy club next week, let’s highlight some of the big moments in the history of astronomy.

For many centuries the science of astronomy was not distinct from the practice of astrology.  For clarity, astronomy is the study of the stars, planets, and the universe with a clear scientific approach.  Astrology is the study of the zodiac signs and how they influence our growth, our personalities and our daily lives.  In modern times, we as people of science discount the astrological side and focus on the astronomy of the heavens.  But they were one study for millennia before the age of science made them separate.

There is historical evidence that astronomy was a recognized science as far back as the Babylonian civilization hundreds of years before Christ.  But the study of the stars was not limited to one country.  There were similar movements going on in China, India, and Ancient Egypt and all over the Arabian Peninsula.  The integration of astronomy and religion is so prevalent that we see it in the Christmas story in which the Magi, Zoroastrian priesthood probably from the equivalent of ancient Syria, followed a star to the Christ child.  These astronomers were also astrologers and it was that mixture that leads them to be part of this historic event.

The first book on astronomy was written by Ptolemy during the Greek empire.  Since that historic publication, the who’s who list of great astronomers charts a path right through the center of modern science including Copernicus, Galileo, Kepler, Sir Issac Newton, Jung, Michelangelo, Benjamin Franklin and more recently even Einstein and Stephen Hawkings would join that noble list.  It seemed that from the Renaissance on to this day, virtually any man or woman of intellect dabbled in astronomy at least somewhat and it has always been considered a sign of the learned to know about the universe and things astronomical.



Astronomy has had an impact on so many areas of our lives that we really don’t recognize.  Many words in our language had their roots in astronomy such as…

* Influenza which comes from the Latin root word for influence.  This reflects an early belief that the position of the moon and stars may influence health and cause or cure disease.

* Disaster which comes from the Latin for “bad star”.

* Lunatic which has the root word "Luna" in it which is the Latin word for moon.  This highlights the long-held belief that is even prevalent today that irrational behavior and even wild and dangerous things happen during a full moon.

Astronomy and its interrelationship with astrology have also influenced culture, education, and religion to a very large extent over the centuries.  In the English language, the first two days or our week, Sunday and Monday are a reference to astronomy as their literal interpretations would be “The Day of the Sun” and “The Day of the Moon.”   

So if you have found astronomy becoming a consuming passion in your thoughts and what fascinates you about the world we live in, you are in great company as this area of study has been a major part of the culture and thought virtually since the dawn of civilization.  And it will continue to fascinate mankind for as long as those beautiful stars shine over our heads.



Tuesday, December 19, 2017

The Rainbow Coalition

Rainbow-PUSH_Headquarters - Photo: Wikimedia
The struggle for freedom and equality for African Americans is one that is passed down from generation to generation and from one era of black leadership to the next.  Throughout history, the African American leadership has had many outstanding men and women who made their mark and made a difference for black people in America.  And that tradition continues to this day with modern black leadership such as Barrack Obama, The Reverend Al Sharpton and Jessie Jackson.

Jessie Jackson has organized his efforts to continue the struggle for civil rights in one of the most innovative organizations in history that came to be known as the Rainbow Coalition.  This organization represented the dreams and goals of the Reverend Jackson, to be sure.  But it also represents the shared efforts of black Americans across the country in modern times to keep the dream of Martin Luther King alive and moving forward.

In fact, the Rainbow Coalition was the outcome of a series of efforts and movements that began with a relationship between Reverend Jackson and Dr. King.  It was Martin Luther King that asked Jessie Jackson to head up a movement called Operation Breadbasket, a project to seek the economic improvement of black communities across the country, particularly in the inner city.  Operation Breadbasket eventually evolved into a powerful civil rights organization known as the Southern Christian Leadership Conference.

As these movements started to make a real difference in the lives of African Americans in America, another step was the development of Operation PUSH which stood for People United to Save Humanity.  This influential organization has become the cornerstone for promoting civil rights and social justice for African Americans in the last twenty years. 

It was from these different initiatives and the success they were realizing that the Rainbow Coalition was birthed to seek economic opportunity in the business community and to encourage Fortune 500 companies to hire minorities and to expand their involvement in the nurture and the development of the black community for the good of all peoples.

The naming of the movement “The Rainbow Coalition” is pivotal to the vision Reverend Jackson had for the civil rights movement.  He did not see it as just black people working for the betterment of the black community.  Instead, inspired by Martin Luther King’s dream of equality and brotherhood of all races, the coalition would truly be a partnership of all minorities, the white community and other equal rights movements to seek equal opportunity for all of America’s citizens.  

The important stance that The Rainbow Coalition brought to the consciousness of the black community and to America was the concept that civil rights were not just a black issue.  It emphasized that all of America cannot move forward when a part of the population is left behind to flounder in poverty and without the benefits of a good education and job opportunities.  The result is that the black pride that was built by key figures of black history such as Mohammed Ali, Spike Lee and even more radical elements such as Malcolm X and the Black Panthers could now be used to promote true equality in the society.  In doing so, Jackson and other contemporary black leaders taught that the African American community not only could be but must insist on being fully black and fully American in their status in American culture.



Finally, the Rainbow Coalition emphasized that civil rights is not just a political issue.  The emphasis was on all aspects of American life including economic equality, social opportunity and even equal representation in the media and entertainment arts.  To be truly represented as an important part of American culture, black Americans must have equal opportunities in all venues.  

This is the message for its time that Reverend Jackson and the Rainbow coalition has brought and continues to bring to the national stage.  And it’s an important message that takes the good that was done in past civil rights movements in this country and brings up to date with a new century.


Monday, December 18, 2017

21 Classic Pontiacs!

Pontiac Catalina - Photo: Wikimedia
So, you think you know your cars now, do you? Well, consider this to be a test of your knowledge of Pontiac history. 21 Pontiacs are featured here: some are current models while others are truly classic in every sense of the word, dating back to the early 1960s. 

6000 – Full sized [or almost] front wheel drive sedan of the 1980s.

Aztec – Ugly is as ugly does. This crossover vehicle ashamed the Pontiac fleet for two years during the early 00s.

Bonneville – Full sized Pontiac sedan excitement retired in 2005 after more than 40 years of service. Part of GM’s massive restructuring and retiring of top model names.

Catalina – This model hearkens back to the mid-60s when two door hardtops ruled the day. Discontinued during the late 70s during GM’s “downsizing” shell game days.

Fiero – Mid-engine sports two-seater built for Pontiac during the go-go 80s. GM reached into their parts bin and took out Chevette and other components to create this little roadster.

Firebird – It goes without saying that this “pony” car is sorely missed. The good news is that it may be back by the time the 2009 model year rolls around.

Firefly – Twin to the Geo Metro, the Firefly was Pontiac’s 3 cylinders captive import of the late eighties to mid-nineties.

G6 – Current compact model in Pontiac’s arsenal available in rakish coupe or sporty sedan.

Grand Am -- With its 1973 debut, the Grand Am quickly became the division’s mid-range performance car. Retired in 2005 with a host of other Pontiac model names.

Grand Prix – Hidden tail lights and a concave rear window marked the Grand Prix’s 1963 debut. The car has survived GM’s model name shake out and today’s car is a mid-sized, front wheel drive sports sedan.

GTO – Introduced in 1967, the GTO was a true coupe turned sports car. Eliminated in the 1970s, the GTO is back thanks to GM’s Australian division, Holden. Rear wheel drive and a big V8 too.

LeMans – Originally a Tempest model, the LeMans became its own model once the Tempest name was retired in the 1970s. Retired in the mid-1990ss after a cheap Korean car was allowed to carry its name. Sheesh!



Montana -- A minivan for Pontiac, if not for the ages.

Parisienne – During the 1980s Pontiac needed a version of the Chevrolet Caprice. This full sized, rear wheel drive sedan filled the bill.

Phoenix – Part of GM’s “X cars” of compact import fighting vehicles introduced during 1979 as a 1980 model.

Sunbird – Nothing but a rebadged Chevy Cavalier. 

Sunfire – Compact coupe retired in 2005 as part of, you guessed, GM’s model restructuring.

Sunrunner – Nothing but a rebadged Geo/Chevy Tracker.

Tempest – From the early sixties until the early seventies, the term “muscle car” befit this hot coupe. Especially nice as a convertible!

Trans Sport – Hideous looking minivan that debuted in the early 1990s. Mercifully replaced years later by the Montana.

Vibe – A currently produced compact five door sport wagon; cousin to the Toyota Matrix. 

So, there you have it. At least another half dozen models were left out from this time period plus many models that dated back to the division’s founding as part of the Oakland Automobile Company in 1926. Pontiac excitement…have you caught it yet?




Sunday, December 17, 2017

Buy Wireless Burglar Alarm to Secure Your Home

The Vivint Skycontrol touchscreen smart home hub - Photo: Wikimedia
Today, a crime can happen even in one's own home, more and more people are purchasing burglar alarm for their homes since this is the safest thing to do in securing security not just for their possessions, but for their family as well. 

Because of the increasing demand for burglar alarms, these are further developed to provide more efficiency. And one of the most demanded designs nowadays is the wireless burglar alarms. 

These systems do not necessitate wires anymore to be connected to one another. Instead, these utilize radio waves coming from the different sensors connected to the control panel to observe the activities inside the home.

The system of wireless burglar alarm is the utilization of motion sensors with the contact in the door and window to notify that there is an intruder within or near the house. The system is directed by a keypad situated in a part of the home. This keypad can activate or deactivate the alarm system remotely. 

Here are the following elements that compose the wireless burglar alarm:

Control Panel: The wireless system’s “brain.” This is situated in a cabinet, cellar or attic for security purposes. The function of this is to receive signals coming from the sensors which have been set up around the area. The alarm immediately sounds when the sensors transmit a warning that directs to the Control Panel. If the alarm system is monitored aside from the sounding of the alarm, the monitoring unit is given an alert by the Control Panel to call for the appropriate authorities.

Keypad: As the name implies, its where the code is keyed in to either activate or deactivate the system. Along with the evolution of the alarm system, the keypad today becomes simpler to use. The keypad is assisted by illuminating screens when used during night time. It also includes the function keys’ feature of single-touch, which allows the press of one button to activate or deactivate the alarm system.

Magnetic Contacts: Here, the magnet is situated near the switch place that calculates the augmentation of distance between the magnet and the switch place. This is set up at the doors and windows guarded by the system. The switch directly sounds an alarm when the activated system detected any increase in the distance of the sensors, like when the doors and windows are forcibly opened. 

Contact sensors: These utilize a reactive infrared light which perceives motion or body heat in an enclosed spot. These are also termed as PIR or Passive Infrared Sensors, and these are usually utilized when the house occupants are not around. These are located on the home spots which are uncommonly used and a persons’ presence is not likely to be expected. PIRs sound an alarm when it perceives motion or body heat in the area. 



Home security cameras: these are added protection, these can be set up through wireless signals that transmit directly to video monitors any activities in the area it covers. These also identify both the burglars and visitors. 

Monitoring: This is an added service offered to the homeowner, this monitor any signals taken by the control panel. By utilizing radio waves, the signals are tracked by the central location produced by the security system. The monitoring service can call for the authorities once the system produces an alarm. 

So, why wait to be victimized by these burglars? Buy a wireless burglar alarm now for your home for more security and peace of mind.



Saturday, December 16, 2017

Getting You Started With Gas Powered RC Car Or Truck


There are many ways on how to start with gas-powered RC car or truck. There are many realistic features offered by these remote-controlled cars and trucks. They come in a variety of styles and types in the industry. In choosing one, there are many considerations you should take before eventually owning one. 

Radio-controlled cars and trucks lack the power and running time. But if you want to consider, you can convert them into gas powered RC cars, with the use of nitromethane-based fuel. This fuel provides RC cars a level or realism or performance, which are absent on other battery-powered vehicles. Aside from this, they are also highly customizable making it possible for you to integrate RC car accessories and personalize them. There are options of engines and transmitters available to allow you to choose one depending on how you’d want the RC car works.

To help you begin in finding the right gas-powered RC car, the following are the factors you should consider:

1. Engines. The most important aspect of a gas RC car, you can choose from the variety of engine models available to choose from. Generally, most RC cars use a specific type, which is commonly called as "glow" engine. It is a 2-cycle combustion engine, which creates power to the RC car preparing it for realism that also produces exhaust in the process. In replacement of spark plugs utilized by automotive engines, a "glow plug" is used for this engine. It is being heated in turn by a "glow starter." The heat will be held by the "glow plug" to which this is now used to fire engine strokes for rest of the running power. 

2. Fuel. Just like the actual gasoline used in automobiles, the nitromethane-based gas fuel the RC cars. The fuel mixture is formulated with special lubricants so that it protects the engine from the excessive heat produced by the combustion process. The lubricants are the same with the gas-oil you use with your small engine equipment or some chainsaws. Accessories such as a special bottle pump may be needed to get nitro-fuel into your fuel tank of the RC car. Filters are also used on these cars and the same with your automobile they require replacement at a proper time interval. 

3. Radio. Radio controller is used to controlling the RC car and could be the same type used on electrically-powered RC cars. It is radio controller operates on a 2-channel system that needs batteries to make it work. Additional batteries would be needed to power the receiver though there are other receivers that are fed from the motor itself. 

4. Sport or competition. This is an aspect you most considered when choosing body style. There are different options for you; you have choices from sedans, trucks, buggies, stock cars, and other popular car models. These are basically available in two versions: sports, and competition version. Sports RC cars typically cost less than the car you intend to race, which of course would need more power and higher speeds. Ball bearings and oil shocks are some of the advanced options included in the competition RC car version. 

Depending on the type you need, RC car kits and ready-to-car or RTR kits are available. If you are a beginner, RTR kits are what you need as this comes out of the box ready for the fuel. RC car kit, on the other hand, requires heavy work but allows you to decide how they would be put together. 




Friday, December 15, 2017

Comets - Visitors From Beyond.

Comet - Photo: Pixabay
The one thing we love the most in the world of astronomy is a good mystery.  And if there was ever a mysterious and yet very powerful force of nature that we witness in the night skies, it is the coming of the mighty comet.

The arrival of a comet within view of Earth is an event of international importance.  Witness the huge media attention that the Haley or Hale-Bopp have had when they have come within view The sight of these amazing space objects is simultaneously frightening and awe-inspiring.  

Above all, it is during these comet viewings that the astronomer comes out in all of us.  But what is a comet?  Where did it come from?  And how does it get that magnificent tail?

We should never confuse comets with asteroids.  Asteroids are small space rocks that come from an asteroid belt between Mars and Jupiter.  While still quite stunning to see, they pale in comparison to the arrival of a comet.  Asteroids also have received considerable study by the scientific community.  

Not as much is known about comets.  As a rule, comets are considerably larger than asteroids.  The composition of a comet is a mixture of nebulous, gasses, ice, dust and space debris.  One scientist called the composition of a comet as similar to a “dirty snowball” because the composition is so diverse and changeable.  The center or nucleus of a comet is usually quiet solid but the “snowball” materials often create a “cloud” around that nucleus that can become quite large and that extends at great lengths behind the comet as it moves through space.  That trailing plume is what makes up the comet’s magnificent tail that makes it so exciting to watch when a comet comes within view of Earth.

The origins of comets are similarly mysterious.  There are a number of theories about where they come from but it is clear that they originate from outside our solar system, somewhere in deep space.  Some have speculated they are fragments left over from the organization of planets that get loose from whatever gravitational pull and are sent flying across space to eventually get caught up in the gravity of our sun bringing them into our solar system.  

Another theory is that they come from a gaseous cloud called the Oort cloud which is cooling out there after the organization of the sun.  As this space debris cools, it gets organized into one body which then gathers sufficient mass to be attracted into the gravity of our solar system turning into a fast moving comet plummeting toward our sun.  However, because of the strong gravitational orbits of the many planets in our solar system, the comet does not always immediately collide with the sun and often takes on an orbit of its own.  



The life expectancy of comets varies widely.  Scientists refer to a comet that is expected to burn out or impact the sun within two hundred years as a short period comet whereas a long period comet has a life expectancy of over two hundred years.  That may seem long to us as earth dwellers but in terms of stars and planets, this is a very short life as a space object indeed.  

Scientists across the globe have put together some pretty impressive probes to learn more about comets to aid our understanding of these visitors from beyond.  In 1985, for example, the United States put a probe into the path of the comet Giacobini-Zinner which passed through the comet's tail gathering tremendous scientific knowledge about comets.  Then in 1986, an international collation of scientists was able to launch a probe that was able to fly close to Haley’s comet as it passed near Earth and continue the research.

While science fiction writers and tabloid newspapers like to alarm us with the possibility of a comet impacting the earth, scientists who understand the orbits of comets and what changes their paths tell us this is unlikely.  That is good because some comets reach sizes that are as big as a planet so that impact would be devastating.  For now, we can enjoy the fun of seeing comets make their rare visits to our night sky and marvel at the spectacular shows that these visitors from beyond put on when they are visible in the cosmos.