Less Than 1,000 Days Until the Next Total Solar Eclipse in the United States

On Monday, August 21, 2017, a total solar eclipse will be visible in some areas of the United States. This is now less than 1,000 days away. The event has been a long time coming. While the last total solar eclipse to be seen in the United States occurred in 1991, that event was limited to Hawaii. Before that, the last solar eclipse visible from the continental United States was on February 26, 1979.

While the 1979 event tracked across Oregon, Washington and Montana, people in 12 states will see the 2017 event. Both eclipses started in Oregon. The earlier one then tracked up into Canada. The 2017 eclipse starts in Oregon, travels across the central United States before finishing far out to sea beyond South Carolina.

A total solar eclipse is a rather rare occurrence. Estimates place the likelihood of any point on Earth experiencing one only every 400 years. This is not absolute, however. Several Oregon locations saw the 1979 eclipse and they will see the 2017 event as well. For them, experiencing two solar eclipses in a little more than 35 years is quite unusual. Closer yet are the cities of Carbondale, Illinois, and Cape Girardeau, Missouri. Residents there will see the 2017 eclipse as well as another in April, 2024. This separation of less than seven years for these two eclipses is very unusual. Of course, it may be hundreds of years before these cities see another.

To be a total eclipse, the moon must completely obscure the sun, for an observer standing on Earth. This can occur monthly, at New Moon. Ordinarily, however, the moon passes either above, or below, the sun’s position, as viewed from Earth. As a result, the moon’s shadow normally sweeps across open space. On rare occasions, as the moon passes directly in front of the sun, a shadow is cast upon the surface of the Earth. If the sun is partially obscured, a partial eclipse results. If the sun is completely obscured, a total solar eclipse occurs. The moon is much smaller than the sun, of course. In fact, the moon is some 400 times smaller. In an astronomical twist, the moon is also 400 times closer to the Earth. This makes the apparent size of the moon very close to the apparent size of the sun. When the moon passes directly in front of the sun, it is able to completely eclipse the sun, for some viewers on Earth.

The shadow cast by the moon, however, is very small. Depending on the distance between the Earth and the moon, which varies somewhat, the moon’s shadow will darken a strip of Earth about 70 miles wide. This strip is called the Zone of Totality. Those people located within this zone will experience a total solar eclipse. Those near, but outside, will see a partial solar eclipse.

On August 21, 2017, the sun is eclipsed for as much as 2 minutes and 40 seconds at the maximum point. Hopkinsville, Kentucky happens to be located at this point. People not located there may see a shorter eclipse duration. Those located outside the zone of totality will only see a partial eclipse. Some cities that will experience totality include Nashville, Tennessee, Kansas City and St. Louis, Missouri. The 2017 eclipse will potentially be seen by millions of people located across the United States.

Each total solar eclipse is unique, but there are similarities. The Earth will darken over time as the moon obscures more and more of the sun. This is the partial eclipse phase. As totality approaches, the amount of sunlight striking the Earth will be greatly diminished. The sky will become similar to twilight. Colors normally seen at sunset will be visible during the day. Birds, animals and insects will be fooled into believing that night is falling. Some will return to their nests or roosts. Nocturnal creatures will begin to emerge. These effects often happen even if a total solar eclipse occurs early in the morning. After totality ends, another partial eclipse phase occurs until the moon passes beyond the sun’s location.

The biggest factor that cannot be predicted with certainty is the weather on August 21, 2017. Cloudy weather could obscure the eclipse for interested observers. As a result, many people examine historical weather patterns in order to determine prime eclipse viewing locations. Since the 2017 event occurs in August, there are some rather promising weather possibilities. In Oregon, the August weather tends to be sunny and dry, perfect eclipse conditions. Morning fog, storms, or clouds, could thwart eclipse viewers, however.

Idaho and Wyoming residents will also experience the 2017 eclipse. The weather in these states could allow a very good eclipse viewing experience. The eclipse occurs fairly early in the day, lessening the possibility of localized thunderstorms.

As the total solar eclipse tracks across more states, from Nebraska to South Carolina, the possibility of inclement weather increases. These locations will experience the eclipse later in the day. Afternoon storms, or hazy weather, could be encountered. Such weather could limit the eclipse experience.

Many US cities have already begun planning for the August 21, 2017 total solar eclipse. The event represents an opportunity to entertain tens of thousands of visitors to cities located within the zone of totality. With proper attention to details, cities can provide a favorable eclipse experience that also highlights the attractions of the local area. Weather permitting, of course.

Bonus Facts:

– the distance from the Earth to the moon increases each year. In less than 1.5 billion years, the moon will not be close enough to produce total solar eclipses. After that, only partial or annular eclipses will occur.

– when the moon eclipses the sun, the sky darkens enough to allow planets and bright stars to be seen in the daytime. On August 21, 2017, the bright star Rigel should be visible low in the south. – Albert Einstein predicted that a total solar eclipse could provide direct proof of the General Theory of Relativity. He postulated that the eclipsed sun would cause light to be bent, for an observer on Earth. This would be proved as stars located behind the sun would appear to be shifted in location. This visual evidence was demonstrated during an eclipse in 1919.

– as the moon passes in front of the sun, it blocks enough sunlight that the solar corona, the super heated atmosphere, becomes visible to people on Earth. The shape of the corona is different during each eclipse as it is influenced by the level of magnetic solar storms, which constantly changes.

– ancient civilizations did not understand the science responsible for total solar eclipses. Eclipses were attributed to supernatural causes and thought to be bad omens.

– the theoretical maximum duration of a total solar eclipse is about 7 minutes. The 2017 eclipse is less than half this duration, at 2 minutes, 40 seconds for those located in Hopkinsville, Kentucky.

– the sun is not safe to view during any portion of the partial eclipse phase. Even if only 1% of the sun is visible, observers risk damage to their eyes through direct observation. At this eclipse stage, the sun appears to be dim enough to view. Unfortunately, the lit portion still transmits full force sunlight to the optic nerve. Because the level of light is so much lower than normal, the observer feels no urge to avert their gaze. Moreover, the optic nerve does not contain pain receptors so victims are unaware that their eyesight is being damaged. Proper eye protection is vital for all observers of the partial solar eclipse phase.

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The Artistic Way of Programming

12 years back, when I started my formal classes in computer science, the first thing I learnt was “data” means “information”. A few days after that, we started conventional programming, where code and data were treated separately. For example, only data can be passed as the functional arguments. It was difficult for me to digest that “code, which is also information, is not treated as data”. I strongly felt that this will increase complexity of softwares in the long run.

A system does three things – read, transform (processing data), write. In other words – the mathematics (the transform part), and the effect of that in real life (the read/write part). The data transformation is indeed a mathematical concept, and with the help of read and write we make the mathematics (the transform part) useful to the real world. Bringing the “transform” part fully inside mathematical domain has its own benefit of using mathematics without fear (possible errors) for the analysis of the system, making the system more tractable mathematically. The catch is to treat both the elements of transformations, data and functions, equally.

Initially, code used to be bigger than the data, so sending data over the wire was feasible. But with time, data becoming huge, sending code to systems over the wire becomes the need, resting the data on the systems intact. With big data, the need of the hour is to treat the code as data, so that the code can be taken as argument to another meta function on a system having huge data which expects an algorithm for transformations.

Roughly speaking, codes are algorithms, algorithms are mathematical functions, functions are in turn actually look-up tables, i.e. data. Hence with this principle, all codes or functions are data.This is exactly the cornerstone of the functional paradigm. The functional programming is programming with functions, they treat functions and data likewise. Another principle I love, to control complexity, rules should not be complex itself.

Thumb rules rewritten for the functional paradigm:

Read-write and transformations(algorithms) should be separate.
Use immutable variables. Discourage use of reassignment statements.
Discourage side-effects (input/output or changing any variable in-place), every function should ONLY return its expected result.
Use referentially transparent functions (sometimes it is called pure functions) with no side effects, i.e. if x = y, f(x) and f(y) should be same forever.
Unit testing is a must for each function.
One of the main design patterns should be followed is to use expressions instead of instructions, i.e. it should be declarative in nature. Discourage use of loops like for/while – use recursive statements as shown above to calculate sum. Tell computers what needs to be done, not how to do it – it reduces error, especially edge cases.
With the need to control the complexity of the system and the advance design, the design pattern for the functional composition can be made to follow some basic algebraic structures, which in turn becomes more robust.

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Degree Results : A Short Analysis

Like the past years, Manabadi Degree Results 2017 will be released in the month of March. Appeared candidates can check their results online. Under it, 1st, 2nd, 3rd Year result of BA, B.Sc, B.Com, BCA, and BBM exam will be published. As the sources say numerous students from different disciplines will be taking part in it. Almost all qualified students inside different kinds of degree plans can appear for this. The whole exam process will be controlled online.

There are adequate sources and online portals for examining the results of different types of programs. Students are eligible to get the results of all programs like Manabadi OU, YVU, VSU, AU, SVU, SKU, and Degree Results of Krishna University. They can have current details and find the outcomes instantly. The exam process is very easy. The students only need to type some required information. The process takes very little time and the result comes out immediately. Moreover, candidates might obtain recent information, updated details and other particulars according to their needs. Depending on the entered date and other information, the students can see veracious information on the screen. Multiple settings for examining ANU, VSU, OU, AU, KU, SKU, YVU, SVU, and Degree Results 2017 will be available for all kinds of college students pursuing their bachelor degrees. Moreover, experts are ensuring that it will be easily accessible for each student. They have added that the outcomes are easily modifiable to give access and entry to all kinds of candidates. It is mandatory to enter all required information in unique areas to confirm the eligibility of a candidate and get started with the test process. Therefore, enrollment with the right information and putting them online during the time of exam is highly required.

Only qualified students are eligible to examine and see the outcomes because students need to put some important information and fill some particulars areas. This is why the process is very transparent, quick and fast. Moreover, they will get to know their Manabadi results 2017 easily and instantly, sitting on their chairs in the exam hall. For this, they do not need to go to a different exam center. They can do all online from their home college. Before the exam, the students should get ready with their roll-number, registration number, etc. Once everything is all right, he or she can log into his account and get to see the questions. During the time of exam, one should keep his or her head cool. Questions are multiple type questions with clickable options at the left. No question is recoverable after submission.

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Unlike Last Season, Early Schedule Will Challenge Cubs In 2017

The celebration has ended, the 108 year drought is over, and baseball on Chicago’s North Side should return to normal. In other words, fans of the Cubs can go back to worrying.

Several big concerns face them as they look toward the 2017 season, in addition to the nearly impossible task of topping the World Series Championship they earned in October. No team has won the Fall Classic back to back in this century, although a much shorter span than the Cubs endured between titles.

That trip to the World Series was made easier by the early schedule, an arrangement the Cubs will not enjoy next April. Chicago did not play a winning team until April 18 against the Cardinals, which was their fifth series of the season. The Cubs did not play another winning team until May 2, when they played the Pirates. Spending the first month against the likes of Cincinnati, Arizona, Atlanta, and Milwaukee would provide nearly any team with the confidence needed to carry them through the most important stretch of the season. To emphasize just how important a hot start is, examine the National League from last season.

All four of the teams who reached the Division Series posted winning percentages over.700 during the first week of 2016, led by the Cubs and Nationals winning eight of their first nine games. The Giants were victorious in six of their first eight, and the Dodgers won seven of their first ten.

The advantage of opening against non-contenders will not be available to the Cubs in 2017, when the early part of their schedule features matchups against the only two teams that had winning records against Chicago last year. They open in St. Louis on April 2nd, a Sunday night game between the two rivals that will be broadcast on national television.

What could make that initial series even more troubling for the Cubs is the strong possibility that one of their most exciting players from last year will be playing for the opposing team. Center fielder Dexter Fowler, Chicago’s spark plug at the top of the batting order, is a free agent. Many baseball writers have projected St. Louis as the most likely team to sign Fowler. After the series in St. Louis, the Cubs must play the team that nearly eliminated them in the NLCS. The Dodgers, who won both of their regular season series against the Cubs in 2016, have the opportunity to avenge their playoff loss on the opening weekend in April.

The hot start Chicago used to build momentum for their World Series run last year is far less likely to befall them in 2017, simply because of the competition. Instead of opening against last place clubs like San Diego and Cincinnati, the Cubs will be tested right out of the chute by teams expecting to be contenders.

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Top 5 Features Added in Revit

A building information modeling (BIM) software, Autodesk Revit, has been useful for architects, structural engineers, MEP engineers, designers and contractors, enabling them to design structures and buildings in 2D and 3D, as well as being 4D BIM capable. It’s first version was released more than a decade back and since then it has seen many updates and new version releases, some have been just incremental updates serving for bug corrections and some have been significant technological updates.

Compared to the 2017 update, the previous 2 editions did not provide any significant upgrade until their ‘release 2’ (R2) editions were released. The 2017 update brings about 50 new, refreshing features which will prove to be immensely useful in creating BIM models. All the new features within the update are equally important and will be useful during the life cycle of a project, but out of those let us discuss the 5 most important features from Revit 2017. 1. Text Editing:

The most awaited feature in Revit since the time it was introduced, text editor has been included in the latest edition of Autodesk Revit. This provides a completely redesigned text engine which is compatible with imported files such as AutoCAD DWG files. The text editor in Revit 2017 also brings corrections to the flaws of text editor from earlier editions and lets users seamlessly switch between text editing mode and viewing mode without causing any unexpected disruptions in text.

2. Global Parameters:

Global parameters feature which was introduced in Revit 2016 R2 version, has received a much needed update in the 2017 edition. The latest update brings in the power of parametric families into the project environment. Applying global parameters to multi-segments is possible in this version, also grouping the parameters becomes easier, as does filtering and reordering. Even though the upgrades do seem to bring a lot of additional features, they do come with their limitations, such as the parameters can only be assigned to certain system family categories and only to user defined instance properties.

3. View Template:

View template is a very simple yet powerful feature added in Revit 2017 which enables the user to share data and reuse schedules. This feature automatically updates all the schedule changes whenever they are affected within their respective templates.

4. Calculated Values in Annotations:

An essential and a long overdue feature introduced in Revit 2017 is Calculated Values in Annotations. It is a useful feature that allows the user to document projects with annotations that allow calculated values and which obey pin restrictions maintaining consistency and accuracy of the project. A tag created with calculations in it can be used with any tag type and pinned to an element allowing the user to reposition that element without actually moving the pin position.

5. Railing Host:

Railing Host or Hosted Railings, is another valuable feature introduced in Revit 2017 (SHOULD THIS SAY 2017?) along with Calculated Value in Annotations feature. With this feature it is now possible to host the railings on Walls, Roofs or Slab Edges and the railings will adjust with variations in slopes and surfaces.

There are a host of other additions and updates in Revit 2017 apart from the ones listed above. It remains to be seen what if any flaws exist during real time use or if they truly result in the enhancements promised. Although, considering the supposed flaws that may exist, Revit 2017 is a huge step forward.

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