Tuesday, March 17, 2020

Top 10 Grammatical and Spelling Errors of 2011

Top 10 Grammatical and Spelling Errors of 2011 In December 2010 I posted the Top 10 Grammar and Spelling Errors from 2010 and got a record number of hits on my blog and â€Å"likes† on facebook. In the past year as The Essay Expert, I’ve collected a new batch of errors.   I did repeat a couple of things from 2010 that were so persistent I just had to repeat myself! I write these lists in the hope that people will implement what they learn and produce better essays, better resumes, and overall better written materials.   Improved writing gets results when it comes to obtaining jobs, getting into school, landing new clients and keeping the customers youve got.   So read up! 10.   Advice vs. Advise Here’s a note from one of my loyal readers, Christine, who requested that I mention this common mix-up: â€Å"Advice is a noun. An example would be: ‘Brenda provided very useful advice regarding spelling errors.’ Advise is a verb. An example would be: ‘Brenda can you please advise your readers about similarly misused words?’† Thank you Christine for your contribution to my yearly list! 9.   Your vs. You’re You’re is a contraction for â€Å"you are.†Ã‚   If you’re using the word to mean â€Å"you are† (2 words), write it as a contraction.   E.g., Do you know that you’re about to miss the 5:00 train? Your is a possessive pronoun.   E.g., Your train is leaving in 2 minutes. 8.   Tenet vs. Tenant Even our president messed this one up.   A tenet is a belief or ideal of faith.   Tenants rent from landlords.   See The President Makes Grammatical Errors Too. 7.   Sign up vs. sign-up I see this one on the web all the time and it drives me a bit batty.   Sign up is a verb.   Sign-up is an adjective that modifies a noun like form or sheet.   Correct:   â€Å"Sign up here for news and updates† or Go to our sign-up page to register.   Incorrect: â€Å"Sign-up here for news and updates† or Go to our sign up page to register.   For similar examples of proper (and improper) use of phrasal verbs, read my article, Check out this Phrasal Verb Breakdown. 6.   Everyday vs. Every day I wrote a whole article about this one too: Common Grammatical Errors:   Everyday vs. Every Day.   Everyday is an adjective meaning â€Å"common† or â€Å"day-to-day.†   As I’m sure you know, people make everyday grammatical errors every day. 5. â€Å"This† without a referent Make sure that if you use the word This to start a sentence, you help your reader understand what you’re referring to!   The best practice is to use a referent after the word This.   Incorrect:   This will ensure your sentences are understood.   Correct:   This practice will ensure your sentences are understood. 4.   Verbage Verbage does NOT mean â€Å"words†!   Although the OED does have an entry for â€Å"verbage† as a â€Å"rare alternate spelling of verbiage,† Merriam-Webster does not even acknowledge the existence of the word. Verbiage, often misused as well, means excess language. The jury is out as to whether the phrase â€Å"excess verbiage† is redundant- but I’m sticking to it. 3.   Apostrophes (that’s not apostrophe’s!) to make plural nouns With some exceptions which I won’t go into here, plural nouns are formed by adding an s or es to the singular form of the noun–NOT by adding an apostrophe!   The plural of parent is parents; the plural of computer is computers; and the plural of Wednesday is Wednesdays.   No apostrophe needed!   Conversely, possessives ARE formed by adding an apostrophe s.   To speak about an author’s intent, for instance, use the apostrophe s. 2.   Myself Think for a few seconds before you use the word myself in place of me at the end of a sentence.   A sentence like â€Å"George was speaking to my friend Lucy and myself† is grammatically incorrect.   Replacing me with myself has become common, perhaps as an attempt to avoid using the word me.   Think about it.   You would say â€Å"George was speaking to me† so just say â€Å"George was speaking to my friend Lucy and me† NOT   George was speaking to my friend Lucy and myself.   The parts of speech don’t change just because another person was added to the sentence! 1. Comma splice I can’t tell you how often my clients string two full, complete sentences together with a comma.   This error is called a comma splice.   (See Writing Tips:   How to Use Commas and Semicolons Part 2.)   Here’s an example:   â€Å"Simply observing my surroundings was not enough for me, I needed to know how things worked and why they worked in that specific way.† The correct way to punctuate this sentence is â€Å"Simply observing my surroundings was not enough for me; I needed to know how things worked and why they worked in that specific way.† Two full sentences should most often get separated by a period or a semicolon; do NOT use a comma! I look forward to your comments and â€Å"likes.† Best wishes for a grammatically correct 2012!   Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚  Ã‚   Brenda Category:UncategorizedBy Brenda BernsteinDecember 26, 2011 7 Comments Kimberly says: December 27, 2011 at 8:25 am Thank you so much for this article. Writing (and speaking) correctly is so important. Question: Verbiage: The verbiage of the document was very clear. Thank you for your expertise. Log in to Reply The Essay Expert says: December 27, 2011 at 10:33 am Thank you for your question Kimberly. In your sentence, I would say The meaning of the document was very clear, or The document was very clearly written, or The language in the document was very clear, or The author used very clear language in the document. Im sure there are many other choices as well! Log in to Reply Ann says: December 27, 2011 at 11:13 am You have helped me so much this year. You have cleared up many of the mistakes that I had made for years. Thank you for this and all your other posts. Log in to Reply The Essay Expert says: December 27, 2011 at 11:19 am Youre welcome Ann! Glad to be making a contribution! Log in to Reply The Essay Expert says: December 27, 2011 at 6:05 pm Thanks for the comment Joan. To me, George was speaking to my friend Lucy and me sounds nicely informal, as well as grammatically correct! Log in to Reply Penelope J. says: December 27, 2011 at 8:34 pm How about misuse of the word I as in George was speaking to my friend Lucy and I? More and more often, I seem to be hearing the pronoun I used in place of me. On occasion, even I get confused as to what is now considered correct grammar. Log in to Reply The Essay Expert says: December 27, 2011 at 8:52 pm Thanks Penelope. I covered that one in last years list so let it be this year 🙂 Log in to Reply

Sunday, March 1, 2020

Wave-Particle Duality Definition

Wave-Particle Duality Definition Wave-particle duality describes the properties of photons and subatomic particles to exhibit properties of both waves and particles. Wave-particle duality is an important part of quantum mechanics  as it offers a way to explain why concepts of wave and particle, which work in classical mechanics, dont cover the behavior of quantum objects. The dual nature of light gained acceptance after 1905, when Albert Einstein described light in terms of photons, which exhibited properties of particles, and then presented his famous paper on special relativity, in which light acted as a field of waves. Particles That Exhibit Wave-Particle Duality Wave-particle duality has been demonstrated for photons (light), elementary particles, atoms, and molecules. However, the wave properties of larger particles, such as molecules, have extremely short wavelengths and are difficult to detect and measure. Classical mechanics is generally sufficient for describing the behavior of macroscopic entities. Evidence for Wave-Particle Duality Numerous experiments have validated wave-particle duality, but there are a few specific early experiments that ended the debate about whether light consists of either waves or particles: Photoelectric Effect - Light Behaves as Particles The photoelectric effect is the phenomenon where metals emit electrons when exposed to light. The behavior of the photoelectrons could not be explained by classical electromagnetic theory. Heinrich Hertz noted that shining ultraviolet light on electrodes enhanced their ability to make electric sparks (1887). Einstein (1905) explained the photoelectric effect as resulting from light carried in discrete quantized packets. Robert Millikans experiment (1921) confirmed Einsteins description and led to Einstein winning the Nobel Prize in 1921 for his discovery of the law of the photoelectric effect and Millikan winning the Nobel Prize in 1923 for his work on the elementary charge of electricity and on the photoelectric effect. Davisson-Germer Experiment - Light Behaves as Waves The Davisson-Germer experiment confirmed the deBroglie hypothesis and served as a foundation for the formulation of quantum mechanics. The experiment essentially applied the Bragg law of diffraction to particles. The experimental vacuum apparatus measured the electron energies scattered from the surface of a heated wire filament and allowed to strike a nickel metal surface. The electron beam could be rotated to measure the effect of changing the angle on the scattered electrons. The researchers found that the intensity of the scattered beam peaked at certain angles. This indicated wave behavior and could be explained by applying the Bragg law to the nickel crystal lattice spacing. Thomas Youngs Double-Slit Experiment Youngs double slit experiment can be explained using wave-particle duality. Emitted light moves away from its source as an electromagnetic wave. Upon encountering a slit, the wave passes through the slit and divides into two wavefronts, which overlap. At the moment of impact onto the screen, the wave field collapses into a single point and becomes a photon.