Advertisements

Tag Archives: Technology

Another way to keep from writing — Match Stick Rocket

 

Match Stick Rocket

SUBJECT: Rocketry

TOPIC: Propulsion

DESCRIPTION: A small solid propellant rocket is made from a match and a piece of aluminum foil.

CONTRIBUTED BY: Steve Culivan, KSC

EDITED BY: Roger Storm, NASA Glenn Research Center

MATERIALS:

  • 2 match book matches or wooden stick matches
  • Small square of aluminum foil
  • Paper clip
  • Safety pin

PROCEDURE:

  1. Take one match and wrap a small piece of aluminum foil around the match-head. Wrap the foil tightly.
  2. Make a small opening in the foil wrapped around the match head by inserting the point of a safety pin and bending upward slightly.
  3. Bend the paper clip to form a launch pad as shown in the diagrams. Erect the match stick rocket on the pad. Make sure the pad is set up on a surface that will not be damaged by the rocket’s exhaust such as a lab table. Several layers of foil on the lab table work well.
  4. Ignite the match by holding a second lighted match under the foil until its combustion temperature is reached.

Caution: Be sure the match rocket is pointed away from people or burnable materials. it is recommended to have water or some other fire extinguishant available. The foil head of the rocket will be very hot!

DISCUSSION: The match stick rocket demonstrates Isaac Newton’s Laws of Motion as they relate to rocketry. Newton’s third law states that for every action, there is an opposite and

English: Low-res simulation of c-slot propella...

equal reaction. The exhaust of the fire products from the burning match (smoke and gas) is the “action” and the movement of the rocket in the other direction is the ‘reaction.’ The action thrust is produced when the match burns in an enclosed environment. The aluminum foil acts as a rocket combustion chamber. Because the opening in the foil is small, pressure builds up in the chamber that eventually escapes as a rapid stream of smoke and gas.

English: Schematic diagram of a V-2 rocket des...

English: Force diagram for rocket engine thrust.

In an interesting variation of the experiment, try making holes of different diameters to let the combustion products out at different rates. A larger opening permits the smoke and gas to escape before it has time to build up much pressure. The escape of the products will be slower than produced by a match stick rocket with a smaller opening. Isaac Newton’s second law states that the force or thrust of a rocket is equal to the mass of the smoke and gas escaping the rocket times how fast it escapes. In this experiment, the mass of the smoke and gas is the same for both cases. The difference is in how fast it escapes. Compare the distance traveled with the two match stick rockets.

via Match Stick Rocket.

English: Isaac Newton: Principia Mathematica E...

Advertisements

Clark and the Pigeons | Gotta Find a Home

Hey Sweetheart We Get Rewrites

Clark and the Pigeons

Posted: June 11, 2013 in Dialog, Prose

11 June 2013

This morning I sat beside Clark. He said, “I was told that Joy doesn’t use this spot when it’s raining, even though, with the overhang from the library, I’ve been able to keep quite dry.”

“That’s right,” I said “Or a few days after check day.”

“Yeah, I can see that.” Within minutes a dark-colored pigeon jumped up on Clark’s knee. He looked me up and down, from side to side, then hopped back down.”

“He seems friendly,” I said.

“Yeah, at my other spot I feed them. This is the alpha male. I’ve seen him mating with four or five of the females around here. That gray one over there is distinctive as well. Notice, she has only two toes on her left foot.”

I asked, “How do you think that happened — maybe a fight with a cat?”

“More likely a snare of some kind. I was talking to a lady who works at a bird sanctuary. She said they’ve noticed a lot of birds like this. They’ve yet to pinpoint where the snare is located, but they’re looking for it. They’d like to introduce a humane trap that wouldn’t injure the birds.

“A lot of restaurants serve it on their menu. Bought locally it goes for about three dollars a pound.”

I said, “You’ve mentioned that you’ve done tree planting in British Columbia. Would you rather live in the city or someplace in nature.”

“I’d far rather live in nature. Every time I come back to the city I can feel this wave of stress come over me. “

I said, ”I have a small cabin that I get away to most weekends. It has no heat, electricity or running water.”

“Have you ever thought about solar power. They’ve done studies that show it’s much less expensive than hydro. They’ve developed a new solar heat conduction vacuum tube in glass or metal. They’re also called evacuated heat pipes. You should give them a try.”

“I will.”

“I’ve heard that the government is cracking down on marihuana production.”

I said, “That seems silly, since people are licensed to grow marihuana for medical purposes. Why doesn’t the government just take over production. Then, there would be quality assurance and tax money coming in. With drugs on the street, you never know what you’ve getting.”

“When I was tree planting a lot of guys used to grow pot or halucinogenic mushrooms. They put the mushrooms into brownies. A guy from another camp came over, ate too many brownies, along with lots of liquor and nearly died.

“When I was in university I studied Psychology. I was mostly interested in Humanism. That’s an ideology that promotes reason, ethics and justice, while specifically rejecting supernatural and religious ideas as a basis of morality and decision-making. It makes sense to me.”

I said, “I like to keep an open mind. I listen to all ideas; accepting the ones with merit, rejecting the others. I’ve developed my own personal philosophy.

“Well, It’s time I headed to work. I enjoyed our conversation, Clark. I look forward to doing it again. Perhaps, the next time it rains.

via Clark and the Pigeons | Gotta Find a Home.

 

Aerodynamics | Poesy plus Polemics

Concept Car Photos from tuvie.com

shearing resistance

from pathways for triumph of speed

over hominid pace

via Aerodynamics | Poesy plus Polemics.

Welcome to a new friend: nejatk2

Heidegger‘s Critique of Modern Technology: On “The Question Concerning Technology

13 Monday May 2013

Click to visit the original post

Reblogged from Be Late.:

Click to visit the original post

“Technology” in practices of development is often understood in terms of a means-end schema toward modernization. More, technology becomes the conceptual frame to signify progress and modernity. Indeed, technological products — from manufactured tools, electronics, bridges to skyscrapers — become so many objects signifying change, of what is new and what is modern. What follows is a critical reconstruction and summary of Heidegger’s essay, “The Question Concerning Technology” (1954).

Read more… 3,151 more words

via nejatk2 | This WordPress.com site is the cat’s pajamas.


Diary of an Aesthete

A Spiritual and Artistic Pilgrimage Around the Globe

Chinese Numbers

Chinese, language, learn, speak, write, textbook, contract, beginner, advanced, intermediate, commercial, marketing, correspondence, characters, radicals, decomposition, business, numbers, numerals, contract

The Earth of Brain

Chinese, language, learn, speak, write, textbook, contract, beginner, advanced, intermediate, commercial, marketing, correspondence, characters, radicals, decomposition, business, numbers, numerals

Le Blog BlookUp

Imprimez et transformez vos contenus digitaux, blogs et réseaux sociaux, en magnifiques livres papier sur blookup.com

annotated audrey art

TUCSON ARTIST AND ILLUSTRATOR

Iridescentfox

There are no foxes here

Tamara Philip, Author

Where Love blossoms...

Adventures of an author's wife

Editor and publicist for my author wife Michelle McMurrie. Michelle is transgender and wrote her current books under her previous name of Michael Pugh.

Nostalgia Pie

Comfort food for the soul from a time when things were so much simpler...

Chris Brake Show Podcast

LIVE! Every Wednesday @ 8pm Eastern / 7pm Central on StrangeLabel.com

Mindy Ogg

Dreams and wishes are meant to come true.

WorldofHarley

Fun for the whole asylum!

Psych Circus

Enjoy, Learn, and Erase Stigma!

lorellepage

Reader-to-Writer

Globe Drifting

Global issues, travel, photography & fashion. Drifting across the globe; the world is my oyster, my oyster through a lens.

The Honking Goose

something to honk about

Blinginitwholesale produces wholesale rhinestone apparel and hot fix crystals

Customized bling shirts and rhinestone heat transfers

tylersculinary

Tylers culinary blog

The Chalk Outline

the blog home of mystery writer Jeff Markowitz

KURT★BRINDLEY

Surmising with aplomb and nary remorse

Mik Mob's Music Mass

share YOUR favourite tunes with The Mob

Riley Amos Westbook

A fantasy Author with too much free time on his hands that likes to Support Indie Authors.

terry73's Blog

A fine WordPress.com site

To Boldly Go

My mission to seek the Lord and to boldly go where He leads me

pgcps mess - Reform Sasscer without delay.

Fight corruption in PGCPS. Innovate, Change and Transform - Create Transparency and Accountability Initiative.

12 Week Weight Loss Course

Losing Weight & Looking Great!

On The Heath

where would-be writer works with words

Amanda Dyer

Founder & Creative Director at Maison by Amanda Dyer & Editor-in-Chief, Living 360 Magazine & Mompreneur 360 Magazine

Don Charisma

because anything is possible with Charisma

Journal Edge

An online blog with highly informative, cheerful and inspirational articles for people who love travel to India with passion and make a different Lifestyle. Vikas Acharya is the founder and managing editor at Journal Edge Online Blog. Contact me to find out how I can help you create high-quality blog content, lead magnets, ebooks, and web copy for your business.

Art Attack

Discovering art in everything

What's Good?

Around the globe..

The Digital Inkwell

If poetry be the food for love, pen on.

Harga Timbangan

Dunia Timbangan,081280780615,081291999252,0216016259,Harga Timbangan,Harga Timbangan Duduk,Harga Timbangan Digital,Harga Timbangan Analitik,Harga Timbangan Manual,Harga Timbangan Gantung,Harga Timbangan Duduk Digital,Harga Timbangan Duduk Manual,Harga Timbangan Lantai,Harga Timbangan Mekanik,Harga Timbangan Gantung Manual,Harga Timbangan Gantung Jarum,Harga Timbangan Buah Digital,Harga Timbangan Neraca Analitik,Harga Timbangan Elektrik,Harga Timbangan Digital Gram,Harga Timbangan Gram,Timbangan Duduk,Timbnagan Manual,Timbangan Duduk Manual,Timbangan Analitik,Timbangan Laundry,Timbangan Mekanik,Timbangan Salter,Timbangan Nagata,Timbangan Cahaya Adil,Timbangan Quattro,Timbangan Sapi,Timbangan Ternak,Timbangan Adam,Analitycal Balnce,Moisture Balance,Timbangan Sn Timah,Timbangan Oc Timah,Timbangan Chq,Timbangan Matrix,Timbangan Acis,Timbangan Lantai,Timbangan Gantung,Timbangan Gantung Jarum,Timbangan Gantung Manual,Jual Timbangan,Timbangan Barang Digital,Timbangan Pemancingan,Timbangan Galatama,Timbangan Obat,Timbangan Neraca Analitik,Timbangan Lantai Digital,Timbangan Camry,Harga Timbangan Laundry,Harga Timbangan Beras,Harga Bandul Timbangan,Anak Timbangan,Batu Timbangan,Timbangan Daging,Timbangan Buah,Timbangan Sayur,Timbangan Barang,Timbangan Balance,Timbangan Floor Scale,Timbangan Counting,Timbangan Anti Air,Timbangan Water Proof,Timbangan Jarum,Timbangan Duduk Jarum

Beautiful Life with Cancer

Discovering the Gift

Strictly for the Birds

The portable world of Anna L. S. Miranda

d|gI+Al hEGeM0n ...d|g|Z|nE

Works of Thought... And Pictures of My Soul

Setsu Uzume

Speculative Fiction

Jobsdhamaka Blog

Job Interview Tips and Career Advices

LOVE AND OLIVES

Just a regular thirty-something-year-old trying to capture the essence of life in writing. Join me as I journey through the ups, the downs and the adventures in between.

Predictable in Her Unpredictability

Doing What Makes My Soul Shine