background preloader

Match Stick Rocket

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 2 match book matches or wooden stick matches Small square of aluminum foil Paper clip Safety pin Take one match and wrap a small piece of aluminum foil around the match-head. 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. DISCUSSION: The match stick rocket demonstrates Isaac Newton's Laws of Motion as they relate to rocketry. In an interesting variation of the experiment, try making holes of different diameters to let the combustion products out at different rates. Return to Rocket Activities Return to Aerospace Activities Page Newton's Third Law Rocket Thrust Aerospace Education Services Project Oklahoma State University Related:  Physics

Einstein for Everyone Einstein for Everyone Nullarbor Press 2007revisions 2008, 2010, 2011, 2012, 2013 Copyright 2007, 2008, 2010, 2011, 2012, 2013 John D. Norton Published by Nullarbor Press, 500 Fifth Avenue, Pittsburgh, Pennsylvania 15260 with offices in Liberty Ave., Pittsburgh, Pennsylvania, 15222 All Rights Reserved John D. An advanced sequel is planned in this series:Einstein for Almost Everyone 2 4 6 8 9 7 5 3 1 ePrinted in the United States of America no trees were harmed web*bookTM This book is a continuing work in progress. January 1, 2015. Preface For over a decade I have taught an introductory, undergraduate class, "Einstein for Everyone," at the University of Pittsburgh to anyone interested enough to walk through door. With each new offering of the course, I had the chance to find out what content worked and which of my ever so clever pedagogical inventions were failures. At the same time, my lecture notes have evolved. This text owes a lot to many. i i i

Light painting with the iPad by Dentsu Dentsu use photographic and animation techniques that were developed to draw moving 3-dimensional typography and objects with an iPad. In dark environments, they play movies on the surface of the iPad that extrude 3-d light forms as they move through the exposure. Multiple exposures with slightly different movies make up the stop-frame animation. > Read more here Geek Genius: How To Get The Latest Gadgets Without Breaking The Bank photo: Harshit Sekhon Tired of spending big bucks every time Apple (AAPL) releases a new version of your go-to gadget? (Hint: this happens every year). Here are five ways to find discounts on all the gadgets you want: RedLaser Bargain hunters swear by RedLaser, a free application for iPhone and Android phones that scans item bar codes to find the merchant that sells it at the lowest price. ChinaBuye Where can you get a laptop for under $100? NexTag You’ve probably heard of NexTag, a price comparison site that now boasts 30 million users. Games Tester Loan Processing Specialist Sarah Horton knows a thing or two about saving money. Property Room Between drug busts and other police seizures, a whole lot of ownerless, high-ticket items end up in police custody. Shane Snow is Editor-in-chief of, which contributed this post exclusively for Mint.

Physics envy In science, the term physics envy is used to criticize a tendency (perceived or real) of softer sciences and liberal arts to try to obtain mathematical expressions of their fundamental concepts, as an attempt to move them closer to harder sciences, particularly physics. Evolutionary biologist Ernst Mayr discusses the issue of the inability to reduce biology to its mathematical basis in his book What Makes Biology Unique?.[2] Noam Chomsky discusses the ability and desirability of reduction to its mathematical basis in his article "Mysteries of Nature: How Deeply Hidden See also[edit] Notes[edit] Jump up ^ For example, Eugene Wigner remarked "The miracle of the appropriateness of the language of mathematics for the formulation of the laws of physics is a wonderful gift which we neither understand nor deserve References[edit] Chomsky, N. (2009). External links[edit] Overcoming ‘Physics Envy’, op-ed by two political scientists.

General Person Generator People This arrogant woman has droopy gray eyes that are like two pieces of steel. Her luxurious, wavy, brown hair is worn in a style that reminds you of a holy halo. She is very tall and has an amazonian build. This guy puts you in mind of a randy demon. This noble guy has narrow blue eyes. This lazy lady has narrow white eyes that are like two spheres of alabaster. This foul-mouthed guy has narrow gray eyes that are like two pieces of steel. This lady puts you in mind of a sturdy tree. This mistrustful man has hooded blue eyes that are like two chunks of lapis lazuli. This guy reminds you of a savvy alley cat. This antisocial woman has narrow orange eyes that are like two setting suns. This innocent man has wide coffee-colored eyes.

Pure Evil Prank of the Day Atomic Weapon Time Travel Research Center © 2005 Cetin BAL - GSM:+90 05366063183 - Turkey/Denizli Atomic Weapon - Atom bombası Diagram-1 Diagram -2 Diagram-1 Stabilizing Tail Fins Tail cone Air inlet tubes Air pressure detonator Lead Shield container Detonator arm Detonating head Conventional Explosive Charge (cordite) Uranium-235 "Bullet" (ca. 24 kg, 16 cm long, 10 cm diameter) gun cylinder (not drawn to proportion: it was 180 cm long, with an inner diameter of 10 cm) Uranium-235 "Target" (ca. 36 kg) with receptacle (neutron reflector is just above) Archie radar altimeter antenna (4xAPS-13) Fuses (inserted to arm bomb just before dropping it) Diagram-2 The Fat Man atomic bomb being readied on Tinian The initial design for the plutonium bomb was also based on using a simple gun design (known as the "Thin Man") like the uranium bomb. Fat Man Specifications Interior of the Fatman bomb. Hubbard's comments on the bogeyman of the time - the atomic bomb - are unintentionally hilarious. Fusion

Photorealistic Pictures Drawn With a BIC Pen EmailEmail At first sight they may look like some pretty sharp blue photographs, however all those pictures are actually hand drawn with a simple Bic ballpoint pen! Spanish artist Juan Francisco Casas uses up to four 14p ballpoint pens to create his incredibly photorealistic drawings, measuring up to 10ft (3 meters) high. The use of penballs makes Juan’s drawings even more original, which certainly has played a big role in his way to success, and his works are already a sell-out at exhibitions. His source of inspiration comes from his own photographs of nights out with his friends, so you can only imagine how wild his parties are, as half of his drawings include girls that forgot to put on their clothes. Website:

Deep-Fried Ravioli On a Stick Deep-Fried Ravioli On a Stick At the very tip top of my food blogger inspirations list is a man whose blog I have admired since the first time I ever hit “publish” on Just a Taste. And that’s why the second his cookbook hit stores, I sprinted to my nearest Barnes & Noble and picked up a copy. Matt Armendariz, you are one talented dude. Matt’s book, On a Stick!, is one of the most beautiful and thoughtfully laid out books I’ve ever read. Deep-Fried Ravioli On a Stick Yield: 4 servingsPrep Time: 15 minCook Time: 10 min Ingredients:1 quart vegetable oil 1 cup all-purpose flour 2 eggs, beaten 1 cup plain bread crumbs ½ cup grated Parmesan cheese, divided 2 Tablespoons dried oregano 2 Tablespoons dried basil 1 Tablespoon dried thyme 2 teaspoons garlic powder 1 teaspoon salt ½ teaspoon pepper 12 store-bought ravioli (or 20 tortellini)Directions:Preheat vegetable oil in a large, heavy pot over medium-high heat.Place flour in one shallow dish and eggs in another.

Complicated Mechanisms Explained in simple animations - Author: admin Filed under: General Date: Aug 1,2010 Radial Engines Radial engines are used in aircrafts having propeller connected to the shaft delivering power in order to produce thrust its basic mechanism is as follows Steam engine Principle Steam engine once used in locomotives was based on the reciprocating principle as shown below Sewing Machine Maltese Cross Mechanism this type of mechanism is used in clocks to power the second hand movement. Manual Transmission Mechanism The mechanism also called as “stick shift” is used in cars to change gears mannually Constant Velocity Joint This mechanism is used in the front wheel drive cars Torpedo-Boat destroyer System This system is used to destroy fleet in naval military operations. Rotary Engine Also called as Wankel engine is a type of internal combustion engine has a unique design that converts pressure into rotating motion instead of reciprocating pistons

Akinator, the Web Genius Curvy in HTML5 Curvy is a HTML5 puzzle game using the canvas element. Just rotate the tiles so that like colors connect. Modernizr tells me you don't have canvas support in your browser. Sadly, this game uses technology that's only in browsers with HTML5 support. Presented to you by FlamingLunchbox is a puzzle, originally for Android phones, using a simple idea. Each Curvy puzzle consists of a grid of hexagonal tiles. Curvy allows a variety of different puzzle sizes, providing puzzles that can be quickly solved as well as more complex versions depending on the size you choose. Want it on Android? We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to and affiliated sites.

Alcubierre Warp Drive Time Travel An Alcubierre Warp Drive stretches spacetime in a wave causing the fabric of space ahead of a spacecraft to contract and the space behind it to expand. The ship can ride the wave to accelerate to high speeds and time travel. The Alcubierre drive, also known as the Alcubierre metric or Warp Drive, is a mathematical model of a spacetime exhibiting features reminiscent of the fictional "warp drive" from Star Trek, which can travel "faster than light" (although not in a local sense - see below). The key characteristics of the application of Alcubierre warp drives for time control and time travel are presented in the picture below. Alcubierre Warp Drive Description In 1994, the Mexican physicist Miguel Alcubierre proposed a method of stretching space in a wave which would in theory cause the fabric of space ahead of a spacecraft to contract and the space behind it to expand. Alcubierre Metric The Alcubierre Metric defines the so-called warp drive spacetime. Mathematics of the Alcubierre drive

Photoshop Shortcuts – The Fun Way In this post I’m going to focus on several Photoshop shortcuts that I tend to use more often than others. Sure I could sit here and spell out every single shortcut available, but why reinvent the wheel? Here is a list of 10 of my favorite and most used Photoshop shortcuts delivered to you via Mr. Stickman. Zoom with scroll Sure you can use the zoom tool straight off of the tool bar, but there is a much easier way. Individual font scaling If you’re looking to change the individual font size for a particular word or word-phrase within the text of your Photoshop document, simply highlight the text and hold Ctrl + Shift while using the > or < key to change the size of the font in 2px increments. 100% zoom Often times when I’m working on a project, I’ll zoom in particularly close to handle detail-oriented aspects of the design. Brush size I’m a fan of the brush tool, as most people are. Layer opacity The amount of transparency that a particular layer displays is know as it’s opacity. Super nudge