What Is A "nebula"?

What is a "nebula"?

A nebula is a large cloud of dust and gas that are star-forming regions. They’re formed when a star dies and its outer layers expand, creating a colourful cloud of gas. In other cases, they’re formed when a star goes supernova (when a really big and bright star dies and explodes).

There are emission nebulae, reflection nebulae and dark nebulae. Emission nebulae are close enough to a star that the gas particles absorb the UV light, get excited and emit their own light. Reflection nebulae are when a nebulae isn’t close enough to a star to absorb it’s UV light so it just reflects it. Dark nebulae aren’t close enough to a star to either absorb it’s light nor reflect it. The only way a dark nebulae is visible is if there’s a star behind it that can act as a backdrop, illuminating the back of the nebulae.

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More Posts from Study-astronomy-biology-ref and Others

Hi All! Grace Here.

Hi all! Grace here.

I am not yet studying Anatomy and probably won’t until next year, but I decided to look up sources relating to Anatomy and gather them here for future reference! I will be adding more to it as I find more. If you are currently studying Anatomy or already have, please let me know if there were sources you are using/did use that were/are helpful so I can add them! :)

Nurse Journal

Human Body Images

Gross Anatomy

E-Skeleton

Human Anatomy

Introduction to the Human Body

Digestive System: The Inside Story

Body Parts Game

The Immune System

Human Anatomy Learning Modules

The Respiratory System

Anatomy of the Eye

Digestive Disorders and Anatomy

Anatomy Flashcards

Human Anatomy and Physiology

Blood Type Lesson Plan

Introduction to Human Genetics

Anatomy of the Human Brain

Heart Anatomy

Anatomy of the Lungs

NYU Virtual Microscope

Muscle Quizzes

Parts of the Brain

Dermatology Glossary

Interactive Body Games

Anatomical Images

The Bone Box

Muscles of the Body

Anatomy and Physiology Course 

Human Body Maps

The Digestive System

Interactive Case Studies

Online Biology Book

Radiographic Anatomy 

Body Guide: Skin

Immunity Guide

Anatomy Self-Test

I hope this is helpful! x


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Use studying techniques to your advantage:

Got these notebooks for 5 cents so obviously going to buy more than one :D # strongnotebookgameisstrong

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There’s a method to my madness I swear!! OK so on avg I seem to use up two of those 80 pg notebooks so I got two for each class. And consequently I needed the 4pack 32pg exercise books. 

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The 80 page notebook is used for in class notes. As soon as anything important is said it is scribbled down into the notebook.  The 4 pack 32 pg exercise book is divided to two groups: Feymann technique and Cornell method.

Feymann Technique

Right after class I grab my textbook, my notebooks and two of  my exercise books. I teach myself the lesson primarily with my notes and if I don’t understand something I turn to my textbook. If I am still lost I leave space and note that there is something I need to clarify with my professor. Even while I am doing this, I force myself to decrease the writing and increase the connections between every topic since the 32 pg is quite smaller than the 80 pg. 

Thankfully when I am done with this, my 32pg becomes the go to whenever it seems like I am in need of revising a topic since it contains relevant notes from both my textbook and my notebook in my own words. 

Cornell Method.

When exam time approaches I convert my notes into the cornell notes so that I can easily test myself with the main ideas and key questions.

There is no better way to revise than to try to make connections. That is all you are going to get tested on since it’s not that hard to spit back words on a page. Instead of being asked about photosynthesis for example, you might be told about some chemical that is sprayed on a plant that will block one process and asked about how that affects the growth of the plant overall. See what I mean? 

Use Studying Techniques To Your Advantage:

I usually get a whiteboard and write all of the connections out and in front of me. When THAT  is done I write it down in flashcard mode and quiz myself for the next week using the Leitner system, along with the topics that are basically just memorization.

LEITNER SYSTEM

Use Studying Techniques To Your Advantage:

Label 5 boxes 1-4, where 1 is for cards you don’t know and 4 is for cards you are basically a pro in. You frequently test yourself in box 1 (maybe every 30 mins, you choose) and increase the time in which you test yourself until you reach 4, where you would test yourself just once a day. 

In the beginning all of your cards go in box 1,and as you get a card right it goes up a level and if you get it wrong it goes down a level. That way you are spending more time with ideas and topics you don’t have a strong hold on, rather than spending equal time with all the topics. 

At this point I have rewritten my notes twice in my own words and then converted them into flashcard mode :) I recommend this method when it comes to the sciences or humanities. For the maths I have already done a post about it here. 

Hope this helps for those still looking for study techniques! 

-F 


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Star Formation In The Tadpole Nebula By Francesco Antonucci

Star Formation in the Tadpole Nebula by Francesco Antonucci


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Could Dark Energy Be Caused By Frozen Neutrinos?
Could Dark Energy Be Caused By Frozen Neutrinos?
Could Dark Energy Be Caused By Frozen Neutrinos?
Could Dark Energy Be Caused By Frozen Neutrinos?
Could Dark Energy Be Caused By Frozen Neutrinos?
Could Dark Energy Be Caused By Frozen Neutrinos?

Could dark energy be caused by frozen neutrinos?

“Since its discovery in 1998, the accelerated expansion has lacked a compelling, simple explanation that didn’t hypothesize a completely new set of forces, properties or interactions. If you wanted a scalar field — a quintessence model — it had to be finely tuned. But in a very clever paper just submitted yesterday by Fergus Simpson, Raul Jimenez, Carlos Pena-Garay, and Licia Verde, they note that if a generic scalar field couples to the neutrinos we have in our Universe, that fine-tuning goes away, and that scalar field will automatically begin behaving as a cosmological constant: as energy inherent to space itself.”

The accelerated expansion of our Universe was one of the biggest surprise discoveries of all-time, and something that still lacks a good physical explanation. While many models of dark energy exist, it remains a completely phenomenological study: everything appears consistent with a cosmological constant, but nothing appears to be a good motivator for why the Universe should have one. Until now, that is! In a new paper by Fergus Simpson, Raul Jimenez, Carlos Pena-Garay and Licia Verde, they note that any generic scalar field that couples to the neutrino sector would dynamically and stably give rise to a type of dark energy that’s indistinguishable from what we’ve observed. The huge advance is that this scenario doesn’t require any fine-tuning, thanks to this dark energy arising from neutrinos “freezing,” or becoming non-relativistic. In addition, there are experimental signatures to look for to confirm it, too, in the form of neutrinoless double-beta decay!


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Bits And Pieces Of The Carina Nebula
Bits And Pieces Of The Carina Nebula
Bits And Pieces Of The Carina Nebula
Bits And Pieces Of The Carina Nebula

Bits and pieces of the Carina Nebula

A site of intense star formation, the Carina Nebula complex is home to some of the brightest and most massive stars in our Galaxy, the Milky Way.

This immense nebula contains a dozen or more brilliant stars that are estimated to be at least 50 to 100 times the mass of our Sun. The most rich and extensive one is the variable star Eta Carinae.

The visible-light view comes from the MPG/ESO 2.2-metre telescope at the La Silla Observatory and the infrared picture comes from the HAWK-I camera on ESO’s Very Large Telescope.

Credit: ESO


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FAMOUS AUTHORS

FAMOUS AUTHORS

Classic Bookshelf: This site has put classic novels online, from Charles Dickens to Charlotte Bronte.

The Online Books Page: The University of Pennsylvania hosts this book search and database.

Project Gutenberg: This famous site has over 27,000 free books online.

Page by Page Books: Find books by Sir Arthur Conan Doyle and H.G. Wells, as well as speeches from George W. Bush on this site.

Classic Book Library: Genres here include historical fiction, history, science fiction, mystery, romance and children’s literature, but they’re all classics.

Classic Reader: Here you can read Shakespeare, young adult fiction and more.

Read Print: From George Orwell to Alexandre Dumas to George Eliot to Charles Darwin, this online library is stocked with the best classics.

Planet eBook: Download free classic literature titles here, from Dostoevsky to D.H. Lawrence to Joseph Conrad.

The Spectator Project: Montclair State University’s project features full-text, online versions of The Spectator and The Tatler.

Bibliomania: This site has more than 2,000 classic texts, plus study guides and reference books.

Online Library of Literature: Find full and unabridged texts of classic literature, including the Bronte sisters, Mark Twain and more.

Bartleby: Bartleby has much more than just the classics, but its collection of anthologies and other important novels made it famous.

Fiction.us: Fiction.us has a huge selection of novels, including works by Lewis Carroll, Willa Cather, Sherwood Anderson, Flaubert, George Eliot, F. Scott Fitzgerald and others.

Free Classic Literature: Find British authors like Shakespeare and Sir Arthur Conan Doyle, plus other authors like Jules Verne, Mark Twain, and more.

TEXTBOOKS

Textbook Revolution: Find biology, business, engineering, mathematics and world history textbooks here.

Wikibooks: From cookbooks to the computing department, find instructional and educational materials here.

KnowThis Free Online Textbooks: Get directed to stats textbooks and more.

Online Medical Textbooks: Find books about plastic surgery, anatomy and more here.

Online Science and Math Textbooks: Access biochemistry, chemistry, aeronautics, medical manuals and other textbooks here.

MIT Open Courseware Supplemental Resources: Find free videos, textbooks and more on the subjects of mechanical engineering, mathematics, chemistry and more.

Flat World Knowledge: This innovative site has created an open college textbooks platform that will launch in January 2009.

Free Business Textbooks: Find free books to go along with accounting, economics and other business classes.

Light and Matter: Here you can access open source physics textbooks.

eMedicine: This project from WebMD is continuously updated and has articles and references on surgery, pediatrics and more.

MATH AND SCIENCE

FullBooks.com: This site has “thousands of full-text free books,” including a large amount of scientific essays and books.

Free online textbooks, lecture notes, tutorials and videos on mathematics: NYU links to several free resources for math students.

Online Mathematics Texts: Here you can find online textbooks likeElementary Linear Algebra and Complex Variables.

Science and Engineering Books for free download: These books range in topics from nanotechnology to compressible flow.

FreeScience.info: Find over 1800 math, engineering and science books here.

Free Tech Books: Computer programmers and computer science enthusiasts can find helpful books here.

CHILDREN’S BOOKS

byGosh: Find free illustrated children’s books and stories here.

Munseys: Munseys has nearly 2,000 children’s titles, plus books about religion, biographies and more.

International Children’s Digital Library: Find award-winning books and search by categories like age group, make believe books, true books or picture books.

Lookybook: Access children’s picture books here.

PHILOSOPHY AND RELIGION

Bored.com: Bored.com has music ebooks, cooking ebooks, and over 150 philosophy titles and over 1,000 religion titles.

Ideology.us: Here you’ll find works by Rene Descartes, Sigmund Freud, Karl Marx, David Hume and others.

Free Books on Yoga, Religion and Philosophy: Recent uploads to this site include Practical Lessons in Yoga and Philosophy of Dreams.

The Sociology of Religion: Read this book by Max Weber, here.

Religion eBooks: Read books about the Bible, Christian books, and more.

PLAYS

ReadBookOnline.net: Here you can read plays by Chekhov, Thomas Hardy, Ben Jonson, Shakespeare, Edgar Allan Poe and others.

Plays: Read Pygmalion, Uncle Vanya or The Playboy of the Western World here.

The Complete Works of William Shakespeare: MIT has made available all of Shakespeare’s comedies, tragedies, and histories.

Plays Online: This site catalogs “all the plays [they] know about that are available in full text versions online for free.”

ProPlay: This site has children’s plays, comedies, dramas and musicals.

MODERN FICTION, FANTASY AND ROMANCE

Public Bookshelf: Find romance novels, mysteries and more.

The Internet Book Database of Fiction: This forum features fantasy and graphic novels, anime, J.K. Rowling and more.

Free Online Novels: Here you can find Christian novels, fantasy and graphic novels, adventure books, horror books and more.

Foxglove: This British site has free novels, satire and short stories.

Baen Free Library: Find books by Scott Gier, Keith Laumer and others.

The Road to Romance: This website has books by Patricia Cornwell and other romance novelists.

Get Free Ebooks: This site’s largest collection includes fiction books.

John T. Cullen: Read short stories from John T. Cullen here.

SF and Fantasy Books Online: Books here include Arabian Nights,Aesop’s Fables and more.

Free Novels Online and Free Online Cyber-Books: This list contains mostly fantasy books.

FOREIGN LANGUAGE

Project Laurens Jz Coster: Find Dutch literature here.

ATHENA Textes Francais: Search by author’s name, French books, or books written by other authors but translated into French.

Liber Liber: Download Italian books here. Browse by author, title, or subject.

Biblioteca romaneasca: Find Romanian books on this site.

Bibliolteca Virtual Miguel de Cervantes: Look up authors to find a catalog of their available works on this Spanish site.

KEIMENA: This page is entirely in Greek, but if you’re looking for modern Greek literature, this is the place to access books online.

Proyecto Cervantes: Texas A&M’s Proyecto Cervantes has cataloged Cervantes’ work online.

Corpus Scriptorum Latinorum: Access many Latin texts here.

Project Runeberg: Find Scandinavian literature online here.

Italian Women Writers: This site provides information about Italian women authors and features full-text titles too.

Biblioteca Valenciana: Register to use this database of Catalan and Valencian books.

Ketab Farsi: Access literature and publications in Farsi from this site.

Afghanistan Digital Library: Powered by NYU, the Afghanistan Digital Library has works published between 1870 and 1930.

CELT: CELT stands for “the Corpus of Electronic Texts” features important historical literature and documents.

Projekt Gutenberg-DE: This easy-to-use database of German language texts lets you search by genres and author.

HISTORY AND CULTURE

LibriVox: LibriVox has a good selection of historical fiction.

The Perseus Project: Tufts’ Perseus Digital Library features titles from Ancient Rome and Greece, published in English and original languages.

Access Genealogy: Find literature about Native American history, the Scotch-Irish immigration in the 19th and 20th centuries, and more.

Free History Books: This collection features U.S. history books, including works by Paul Jennings, Sarah Morgan Dawson, Josiah Quincy and others.

Most Popular History Books: Free titles include Seven Days and Seven Nights by Alexander Szegedy and Autobiography of a Female Slave by Martha G. Browne.

RARE BOOKS

Questia: Questia has 5,000 books available for free, including rare books and classics.

ARTS AND ENTERTAINMENT

Books-On-Line: This large collection includes movie scripts, newer works, cookbooks and more.

Chest of Books: This site has a wide range of free books, including gardening and cooking books, home improvement books, craft and hobby books, art books and more.

Free e-Books: Find titles related to beauty and fashion, games, health, drama and more.

2020ok: Categories here include art, graphic design, performing arts, ethnic and national, careers, business and a lot more.

Free Art Books: Find artist books and art books in PDF format here.

Free Web design books: OnlineComputerBooks.com directs you to free web design books.

Free Music Books: Find sheet music, lyrics and books about music here.

Free Fashion Books: Costume and fashion books are linked to the Google Books page.

MYSTERY

MysteryNet: Read free short mystery stories on this site.

TopMystery.com: Read books by Edgar Allan Poe, Sir Arthur Conan Doyle, GK Chesterton and other mystery writers here.

Mystery Books: Read books by Sue Grafton and others.

POETRY

The Literature Network: This site features forums, a copy of The King James Bible, and over 3,000 short stories and poems.

Poetry: This list includes “The Raven,” “O Captain! My Captain!” and “The Ballad of Bonnie and Clyde.”

Poem Hunter: Find free poems, lyrics and quotations on this site.

Famous Poetry Online: Read limericks, love poetry, and poems by Robert Browning, Emily Dickinson, John Donne, Lord Byron and others.

Google Poetry: Google Books has a large selection of poetry, fromThe Canterbury Tales to Beowulf to Walt Whitman.

QuotesandPoem.com: Read poems by Maya Angelou, William Blake, Sylvia Plath and more.

CompleteClassics.com: Rudyard Kipling, Allen Ginsberg and Alfred Lord Tennyson are all featured here.

PinkPoem.com: On this site, you can download free poetry ebooks.

MISC

Banned Books: Here you can follow links of banned books to their full text online.

World eBook Library: This monstrous collection includes classics, encyclopedias, children’s books and a lot more.

DailyLit: DailyLit has everything from Moby Dick to the recent phenomenon, Skinny Bitch.

A Celebration of Women Writers: The University of Pennsylvania’s page for women writers includes Newbery winners.

Free Online Novels: These novels are fully online and range from romance to religious fiction to historical fiction.

ManyBooks.net: Download mysteries and other books for your iPhone or eBook reader here.

Authorama: Books here are pulled from Google Books and more. You’ll find history books, novels and more.

Prize-winning books online: Use this directory to connect to full-text copies of Newbery winners, Nobel Prize winners and Pulitzer winners.


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Convergence II

Convergence II

Jaxson Pohlman Photography

ov


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Strong words to use on a Resume

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If you have ever had to write a resume for work or for an application, then you know the hardest part is figuring out what type of words to use that sound professional and and intelligent.

Example: If an application asks you if you have any relevant experience for a job at a day care center and you have experience, like you have babysat children. You would look at the words in the columns to see what words you should use that will help your resume stand out. You might put down “Have supervised and attended to children on a regular basis.”

I hope this is helpful to you.


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How To Help Your Anxious Partner — And Yourself

Living with anxiety can be tough — your thoughts might race, you might dread tasks others find simple (like driving to work) and your worries might feel inescapable. But loving someone with anxiety can be hard too. You might feel powerless to help or overwhelmed by how your partner’s feelings affect your daily life.

If so, you’re not alone: Multiple studies have shown that anxiety disorders may contribute to marital dissatisfaction.

“We often find that our patients’ … partners are somehow intertwined in their anxiety,” says Sandy Capaldi, associate director at the Center for the Treatment and Study of Anxiety at the University of Pennsylvania.

Anxiety is experienced at many different levels and in different forms — from moderate to debilitating, from generalized anxiety to phobias — and its impacts can vary. But psychiatrists and therapists say there are ways to help your partner navigate challenges while you also take care of yourself.

Read the full story here


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study-astronomy-biology-ref - Astronomy, biology, study references and science
Astronomy, biology, study references and science

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