The Undiminished Importance Of Diminished Seventh Chords The Small But Essential Microscope Slide Learn From A Good Math Lesson Plan Audio Book Rental Clubs Review The Categories Of Wind An Informative Article About The Different Kinds Of Winds

Diminished is important! Diminished size doesn’t matter! Diminished is beautiful! Why am I hyperventilating? Okay, let’s calm down and talk about diminished chords.

A diminished seventh chord in closed position has different four notes, each of which is separated from the other by a distance of three semitones. Having said that, it should be clarified that a semitone is the smallest distance between two notes on a piano and closed position involves the different notes of a chord being placed as closely as possible to each other.

Here are three different diminished chords:

B, D, F and Ab

B#, D#, F# and A

C#, E, G and Bb

Practically speaking, all other diminished seventh chords are derived from the above. For example, D, F, Ab and Cb would have been the next diminished chord in the above list, had I continued with a fourth example. However, D, F, Ab and Cb contain the same notes as B, D, F and Ab (the first chord in the list above). The only difference is the order in which the notes appear and the spelling of one of the notes (i.e. B and Cb are the same note on a piano).

So why state a comprehensive listing of twelve diminished seventh chords below. It is precisely because of the spelling of the notes that we have the more comprehensive list. The ways that notes are spelled out indicate which key we are in during a composition. From a theoretical standpoint, this knowledge is invaluable. Here is a more comprehensive listing of twelve different diminished seventh chords (all spelled differently):

B, D, F and Ab

B#, D#, F# and A

C#, E, G and Bb

D, F, Ab and Cb

D#, F#, A and C

E, G, Bb and Db

E#, G#, B and D

F#, A, C and Eb

Fx, A#, C# and E

G#, B, D and F

A, C, Eb and Gb

A#, C#, E and G

Examples one through twelve above belong to the following minor keys respectively: C, C#, D, Eb, E, F, F#, G, G#, A, Bb and B. As a composer, knowing what key you are writing in is a necessity. As a pianist, the more insight you have into a composition that you are performing, the more depth you can give to your interpretation.

Here is a fascinating observation involving diminished seventh chords. If you take, for example, a diminished seventh chord of C minor (B, D, F and Ab), you can create four different dominant seventh chords by simply lowering any one of the notes in the chord by a semitone (a half step).

As a demonstration, if we lower the top note as such: B, D, F and G, then we have a dominant seventh chord of C major and a potential modulation to the tonic major of your original key. In plain English, that means that we can easily change keys from C minor to C major.

Using this system, the diminished seventh opens up the possibility of four different, quick modulations, making this chord a powerful tool in the hands of a skilled composer or piano improviser.

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One of the sometimes overlooked pieces of equipment in any research lab is the humble microscope slide. Yet without a high quality microscope slide, the characteristics of the specimen being viewed can often be confused with the characteristics of the surface on which it is placed. A colored background will appear, under magnification, to be part of the specimen, and may even cause light refection which creates a haze around the specimen and makes it harder to analyze

Microscope slides, if they are to provide the clearest possible images, are required be made according to specific standards. Those which do not meet those standards will not be acceptable in any lab which performs microscopic research.

Characteristics Of Microscope Slides

A microscope slide must be constructed wither of glass or plastic; most slides are transparency so that their surfaces are not confused with the specimen upon it; nor will it create the haze-producing reflection. There are, however, frosted microscope slides for special uses.

The microscope slide should be a rectangle measuring 25 mm by 75 mm. Such a size makes the microscope slide both easy to manipulate and big enough to contain an adequately sized specimen. Under certain circumstances, however, larger slides may be called for, and as long as the microscope can accommodate them their use is appropriate.

A microscope slide should be between 1 mm and 1.2 mm thick, in order to diffuse light so that it is neither bright enough to irritate the viewer’s eyes not dim enough to make the specimen difficult to see. Slides are usually purchased in thicknesses a little greater than required for their expected use.

Cover Slips

Microscope slides which will be used with liquid specimens should have cover slips. Cover slips are use to “squash” the liquid so that air bubbled cannot form in it and affect the appearance of the specimen. The cover slip is simply a very small, thin piece of glass or plastic.

Handling A Microscope Slide

A single drop of pond water on a clean, transparent microscope slide can be a portal to another universe!

Writing a math lesson plan is very easy for some teachers, but a lot of teachers find it very difficult. The most passionate teachers will find that writing lessons for their mathematics classes is very difficult. The reason for this is that a passion for mathematics doesn’t always translate into the ability to organize a cohesive educational lecture or class. Teachers that have difficulty putting their passion into a math lesson plan often need some tools to help them put it all down on paper or even a computer. This may take some practice, but every teacher can learn how to write great lessons that will take your passion and make it the passion of your students, as well.

There are many tools you can use as a math teacher to enrich your lessons and writing process. First, you can use a planner or planning book. These are usually a great way to write down a rough idea of what you plan to teach from day to day. If you are organized, you can write down the objective of all of the lessons and what you plan to tie into the lesson in the way of worksheets, crafts, textbook assignments, research papers, etc. Many teachers try this approach and have a lot of success, while others find that they cannot form organized lessons in the planners. Organization is key when using this type of tool, because you want your lessons to flow from one day to the next.

If you have found that writing a math lesson plan using all of the traditional tools doesn’t work all that well for you, or you just want a break from writing your own lessons, you might want to look into some of the tools that are currently available to teachers. Much of the mathematics programs that are on the market have fully prepared lessons for teachers to use with their students. The lessons are written by teachers for teachers, so there is no need to worry about content or how complete the lessons may or may not be. You might not want to use the lessons for all of your teaching, but you might find that they are a good supplement to your own lessons.

Audio Book Rental Clubs – Getting Your Membership Started

Do you love books but somehow never have the time to sit down and read them? The introduction of audio book rental clubs means that there are no more excuses – you can listen to your favorite novel and still perform the other million necessities that are required in your busy life. There are many audio book rental clubs to choose from so it is advised that before you jump in and sign up you should do your own mini audio book club review. Most clubs will provide you with a free section whereby you can listen to a novel and sample the style of audio that is on offer. After you have sampled the audios from a few different clubs your next logical step is to select the one that best suits your needs and sign up for a formal membership.

There are usually two types of audio book clubs; The first offers the option of choosing your preferred format and physically renting the audio book, or secondly you can listen to the download through the internet. You decide whether you wish to keep the book, or simply rent it for the set period of time (which is obviously the cheaper option). For the busy lifestyle that we lead today the audio book rental clubs are fast becoming an invaluable resource. If you listen to an audio book at least once a day then this is usually a good indicator that you are ready to take the plunge and join an audio book rental club.

Audio Book Rental Clubs – Which One Is Right For You?

By understanding your audio book needs, requirements and habits you will be better equipped to choose the audio book rental clubs that are right for you. Once you are armed with this information then seek out the club or clubs which best suit your needs. Over the past couple of years there has been an enormous amount of money spent on developing this industry and both the audio book download and rental services have become indistinguishable from each other, with both services offering what the other offers.

The customers of the audio book rental clubs have, over time, become more discerning about the service that they require and would prefer to have the freedom of either renting books, or perhaps buying the download to add to a collection. When these clubs were originally formed there was a restriction of choosing one of the other, however, this is no longer the case. When choosing which audio book rental club you are going to join it is important that you firstly consider how you view audio books – are you looking to add to your collection or simply wanting a one-off rental.

The audio book clubs are the perfect choice if you wish to start a collection. If you’re always on the road or prefer to not collect things, then renting out would be your best option. Either service can give you the option to buy or rent so the next things that you need to take into consideration would be the regularity that you intend to listen to your audio books.

There are audio book rental clubs that offer packages based on your listening habits. These plans tend to offer a degree of flexibility so you are not locked into a subscription that is no longer suitable for your needs. There are plans that even reward you if you rent or download more books than what is specified in your agreement. Great savings can be made with these rewards and are usually in the form of a rebate or a price reduction on future purchases.

Pricing should also be seriously considered when you are researching and performing your audio book club review. The price to rent an audio book is usually slightly cheaper than the download option and varies depending on which audio book rental club you join. Take all these things into consideration before committing to a particular audio book rental club that way you will be happy with your commitment and your listening experience will be much more enjoyable.

The speed at which the air current moves, and the direction from which it moves determines what the wind is named and also determines weather the wind is harmful or beneficial. A wind of 19 to 24 mile an hour is classified as a fresh breeze, and is not harmful. When the wind reaches a speed of 47 miles an hour, it is called a strong gale, and may cause some damage to fruit crops. At 64-75 miles an hour, it is considered a wind storm and dangerous to both crops and properties. Above 75 miles an hour, when it is classified as a hurricane, wind is devastating among its damage to crops, properties, and man himself.

The most dangerous wind of all winds is the tornado, a swirling movement of the wind in a counterclockwise direction, sometimes at more than 300 miles per house. The speed of a tornado has never been measures accurately, but the destruction is almost incredible.

In describing the force of wind, mariners use a scale drawn up in 1805 by Rear Admiral Sir Francis Beaufort, a famous British hydrographer. He developed a historic table of the strengths of winds based on the effect of wind on sailing ships.

0-1 MPH – Calm, 1-2 MPH – Light Breeze, 4-7 MPH – Slight Breeze, 8-12 MPH – Gentle Breeze, 13-18 MPH – Moderate Breeze, 19-24 MPH – Fresh Breeze, 25-31 MPH – Strong Breeze, 32-38 MPH – Moderate Gale, 39-46 MPH – Fresh Gale, 47-54 MPH – Strong Gale, 55-63 MPH – Whole Gale, 64-75 MPH – Wind Storm, Above 75 MPH – Hurricane

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