March 7, 2015

Sunrise - sunset photo

Anche se il Sole sembra "salire" dall'orizzonte, è in realtà il movimento della Terra che fa apparire il sole. L'illusione di un sole che si spostano i risultati di osservatori della Terra di essere in un sistema di riferimento rotante; questo moto apparente è così convincente che la maggior parte delle culture avevano mitologie e religioni costruiti attorno al modello geocentrico, che ha prevalso fino astronomo Niccolò Copernico prima formulato il modello eliocentrico nel 16 ° secolo

Beautiful sunrise clouds
© Photographer: Alvera | Agency: Dreamstime.com
Architetto Buckminster Fuller ha proposto la "sunsight" termini e "sunclipse" per rappresentare al meglio il modello eliocentrico, anche se i termini non sono entrati nel linguaggio comune.

March 2, 2015

How to Repair Your Blade 400 Helicopter

The good thing about ready to fly rc helicopters like the Blade 400 is you don’t have to build them! The bad thing about ready to fly rc helicopters is you don’t have to build them! This means, when it comes time to repair crash damage, you don’t know what all of the parts do and where they all go.

Although, the Blade 400 is fairly simple, it can be somewhat intimidating to a new pilot, especially when you look in the manual at the parts listing and see all of those parts.

Fear not! With a little help from this website, you will learn how to take apart, put back together and repair your Blade 400.


The most common types of crash damages are:
Blade strikes into something (ground, tree, car, house, neighbor’s dog, etc...). This means replacing the Blades and most probably the Feathering Shaft, Main Shaft, Servo Gears and possibly the Main Gear.
Blade strikes into the Boom (AKA Boom Strike). This means replacing the above mentioned Blades, Feathering Shaft, Main Shaft, Servo Gears, Main Gear, Boom and maybe even the Tail Rotor Belt.
Tail Rotor strikes into something (ground, tree, car, house, neighbor’s dog, girl friend / boy friend, etc...). This means replacing the Tail Rotor Blades, Tail Rotor Shaft, possibly the Servo Gears, one or both bearings and sleeping on the sofa.
more info: http://www.repairblade400.com/


Helicopter repair team
© Photographer: Alvera | Agency: Dreamstime.com

February 5, 2015

Save Rosia Montana!

SAVE ROSIA MONTANA! PLEASE SHARE.

(photo: THIS PROPERTY IS NOT FOR SALE)
Roșia Montană Project is a gold and silver mining project initiated by Roșia Montană Gold Corporation in Roşia Montană, Romania. If approved, it would become Europe's largest open-pit gold mine and it would use the gold cyanidation mining technique. Currently, the project is on-hold awaiting a parliamentary decision.

The benefits of the state consist of 20% of the shares owned by the publicly owned company Minvest Deva and the 6% royalties of the gold and silver extracted not taking into consideration other valuable metals such as Wolfram, Uranium, Tellurium, Germanium, Titan, Molybdenum, Vanadium, Nickel, Chrome, Cobalt, Gallium, Bismuth, Arsenic or the Potassium-Feldspar. a Romanian company established in 1997, in Alba County, based in Roșia Montană, whose shareholders are the State-owned mining company Minvest Deva - with 19.31%, Gabriel Resources – with 80.46% (listed on the Toronto Stock Exchange (GBU symbol)) and other minority shareholders – with 0.23%.

The project met a significant resistance from environmental groups and from neighbouring European countries, culminating in the nationwide protests by thousands of people across the country since September.

A number of locals refuse to sell their properties to the Roșia Montană Gold Corporation and, in order for the project to commence, the state would need to exercise eminent domain. (source: wikipedia)


February 2, 2015

Clouds over creepy moon

Clouds over creepy moon. My last video footage approved for sale on Dreamstime.

Moon clouds wind move
© Photographer: Alvera | Agency: Dreamstime.com

Clouds sky timelapse

Now Dreamstime accept 60 seconds lenght videos!

Clouds sky timelapse
© Photographer: Alvera | Agency: Dreamstime.com

February 1, 2015

Micnova macro tubes repair disassembly

One of Micnova macro tubes for Nikon DSLR was faulty. I disassembled it for repairing. Very hard to assembly again but operation successfully.  More photos to come. All rights reserved AlveraPhoto.

In the first photo is the aperture change piece. In my tube this piece was bend and I had big friction betwen piece and body. At lower apertures like f18, f22, the tube was not usable.




 Be careful at that spring, will jump inside the tube or out and gone lost forever. There are 3 springs in the tube.





You can see another spring here.




 Take care how this front piece (the white one, foreground in the photo), enter in that fork. Is important.


For Canon and Nikon Extension tubes are designed to enable a lens to focus closer than its normal set minimum focusing distance. Getting closer has the effect of magnifying your subject (making it appear larger in the viewfinder and in your pictures).

They are exceptionally useful for macro photography, enabling you to convert almost any lens into a macro lens at a fraction of the cost while maintaining its original optical quality.

The extension tubes have no optics. They are mounted in between the camera body and lens to create more distance between the lens and film plane.

Moving the lens further away from the film or CCD sensor in the camera, the lens is forced to focus much closer than normal. The greater the length of the extension tube, the closer the lens can focus.

The Micnova Auto Extension Tube Set contains three tubes of different lengths, 13 mm, 21 mm, and 36 mm.
Each of the tubes can be used individually or indeed in any combination to obtain the desired magnification.

January 22, 2015

Sunrise clouds sky on fire

As a ray of white sunlight travels through the atmosphere to a point from Earth, some of the colors are scattered out of the beam by air molecules and airborne particles from Earth, changing the final color of the beam from a human observer. Because the shorter wavelength components, blue and green, scatter more strongly, these colors are removed from the initial beam. At sunrise and sunset, when the path through the Earth atmosphere is longer, the blue and green components are removed almost completely leaving the longer wavelength orange and red hues we see at those times. The remaining reddened sunlight can then be scattered by cloud droplets and other relatively large particles to light up the horizon red and orange. So this sunrise is a beautiful sunrise for our eye because of physics laws. But sunrise is always beautiful Our life must be a sunrise all the time. Kids are sunrise.
Beautiful sunrise clouds
© Photographer: Alvera | Agency: Dreamstime.com

January 7, 2015

Terror Attack on Charlie Hebdo Paris Headquarters

Terror Attack on Charlie Hebdo Paris Headquarters


Police in Paris are engaged ongoing terror incident in Paris which heavily armed terrorists who stormed the headquarters of a French satirical magazine called Charlie Hebdo.

Sunrise

Air molecules and airborne particles scatter white sunlight as it passes through the Earth's atmosphere. This is done by a combination of Rayleigh scattering and Mie scattering. (The Mie solution to Maxwell's equations (also known as the Lorenz–Mie solution, the Lorenz–Mie–Debye solution or Mie scattering) describes the scattering of an electromagnetic plane wave by a homogeneous sphere. The solution takes the form of an infinite series of spherical multipole partial waves. It is named after Gustav Mie.)
Early sunrise clouds
© Photographer: Alvera | Agency: Dreamstime.com
As a ray of white sunlight travels through the atmosphere to an observer, some of the colors are scattered out of the beam by air molecules and airborne particles, changing the final color of the beam the viewer sees. Because the shorter wavelength components, such as blue and green, scatter more strongly, these colors are preferentially removed from the beam. At sunrise and sunset, when the path through the atmosphere is longer, the blue and green components are removed almost completely leaving the longer wavelength orange and red hues we see at those times. The remaining reddened sunlight can then be scattered by cloud droplets and other relatively large particles to light up the horizon red and orange. The removal of the shorter wavelengths of light is due to Rayleigh scattering by air molecules and particles much smaller than the wavelength of visible light (less than 50 nm in diameter). The scattering by cloud droplets and other particles with diameters comparable to or larger than the sunlight's wavelengths (> 600 nm) is due to Mie scattering and is not strongly wavelength-dependent. Mie scattering is responsible for the light scattered by clouds, and also for the daytime halo of white light around the Sun (forward scattering of white light). Without Mie scattering at sunset and sunrise, the sky along the horizon has only a dull-reddish appearance, while the rest of the sky remains mostly blue and sometimes green.

Sunset colors are typically more brilliant than sunrise colors, because the evening air contains more particles than morning air.

December 27, 2014

The Carpathian Mountains, Europe

Mountain landscape at sunrise
© Photographer: Alxcrs | Agency: Dreamstime.com

The Carpathian Mountains or Carpathians are a range of mountains forming an arc roughly 1,500 km (932 mi) long across Central and Eastern Europe, making them the second-longest mountain range in Europe (after the Scandinavian Mountains, 1,700 km (1,056 mi)). They provide the habitat for the largest European populations of brown bears, wolves, chamois and lynxes, with the highest concentration in Romania, as well as over one third of all European plant species. The Carpathians and their foothills also have many thermal and mineral waters, with Romania having one-third of the European total. Romania is likewise home to the largest surface of virgin forests in Europe (excluding Russia), totaling 250,000 hectares (65%), most of them in the Carpathians, with the Southern Carpathians constituting Europe’s largest unfragmented forested area.

The Carpathians consist of a chain of mountain ranges that stretch in an arc from the Czech Republic (3%) in the northwest through Slovakia (17%), Poland (10%), Hungary (4%) and Ukraine (11%) to Romania (53%) in the east and on to the Iron Gates on the River Danube between Romania and Serbia (2%) in the south. The highest range within the Carpathians is the Tatras, on the border of Slovakia and Poland, where the highest peaks exceed 2,600 m (8,530 ft). The second-highest range is the Southern Carpathians in Romania, where the highest peaks exceed 2,500 m (8,202 ft).

The Carpathians are usually divided into three major parts: the Western Carpathians (Czech Republic, Poland, Slovakia), the Eastern Carpathians (southeastern Poland, eastern Slovakia, Ukraine, Romania), and the Southern Carpathians (Romania, Serbia). (source wikipedia)

December 22, 2014

Red crested European duck

Red crested diving duck (Netta Rufina) on water
© Photographer: Alvera | Agency: Dreamstime.com
There are three categories of Red-crested Pochards which occur in a wild state in the UK: escapes from captivity, ferally breeding birds and genuine vagrants from Europe. Unfortunately for any one individual found in the wild, working out which of the categories it fits into is usually impossible so proving you've seen a genuinely wild vagrant here is a hopeless task. Leucism is frequent among captive (and thus escaped) birds.

December 19, 2014

Pretty teacher

Public education is universally available, with control and funding coming from the state, local, and federal government. Public school curricula, funding, teaching, employment, and other policies are set through locally elected school boards, who have jurisdiction over individual school districts. State governments set educational standards and mandate standardized tests for public school systems.

Private schools are generally free to determine their own curriculum and staffing policies, with voluntary accreditation available through independent regional accreditation authorities. 88% of school-age children attend public schools, 9% attend private schools, and nearly 3% are homeschooled.
Beauty portrait of brunette woman.

Education is compulsory over an age range starting between five and eight and ending somewhere between ages sixteen and eighteen, depending on the state. This requirement can be satisfied in public schools, state-certified private schools, or an approved home school program. In most schools, education is divided into three levels: elementary school, middle or junior high school, and high school. Children are usually divided by age groups into grades, ranging from kindergarten and first grade for the youngest children, up to twelfth grade as the final year of high school.

There are also a large number and wide variety of publicly and privately administered institutions of higher education throughout the country.
© Photographer: Neonshot | Agency: Dreamstime.com

December 10, 2014

Snake

One of the most outstanding features of reptiles is the texture of their skin. For this reason some of the most arresting images of reptiles are often close ups. I think these types of pictures stimulate deeply rooted primal human fears of monsters when we view them. To capture these kinds of photographs we need to get as up close and personal as we can with our subjects.

Red-bellied Water Snake
© Photographer: Alvera | Agency: Dreamstime.com