Play Catapult

Hi Friends, how are you all? certainly not exceptional. if anyone is sad, do not worry, forget your sorrow soon, because as usual we will air 'smart & fun' fun with science experiments are certainly a shame if to pass up.

You must have heard about the slingshot. Well slingshot was actually derived from the catapult, which is a tool of war often formerly used in a wide variety of great battles before the invention of the cannon. do not imagine it like a slingshot catapult that often we play. catapults that actually is very large even to use it takes a lot of people.

Well this time we will try to make a miniature of the various types of catapults, the Viking catapult. One of the characteristics of this viking catapult he is on the move and easier to use, but its strength is no doubt. this is one weapon that caused the nation viking explorers called the nation a very respected ... well let's get started.

To make a viking catapult, the necessary tools are not much you need is:

• Rubber bracelets 12 pieces
• Satay skewers round 6 equal pieces
• A plastic bottle cap
• Scissors / cutter

Well now do the following

• First we create the basic framework catapults that by assembling wooden skewers and combine it with a rubber band as shown in the side
• Create a tool thrower with bottle cap puncture in three sections and tie it with a rubber
• Then after it was united with the tool frame slingshots and catapults thrower is ready to be used
• Use a small crumpled paper as slingshot ammunition or can also use a ping-pong ball

Done already catapults us, but do not worry to make the simulation more exciting battle with your friends in groups, have survived and there is as a striker.

The task of the attacker is to destroy the enemy stronghold, while the last task is to destroy all of catapult used by attackers. if there is already a winner do exchanges that attack becomes survive and vice versa.

How? not easy at all. Did my friend what causes paper science and the ping-pong ball shot out of catapults and toward the target? and if you want a more challenging not, you can perform the following activities:

• Calculate What is the farthest distance that can be achieved by catapults that you make? and trying to do improvements to find a way to shoot the most distant
• Then you try to replace the paper and a ping-pong ball with a much heavier objects such as iron or stone (navigate to an empty spot and no one), is there a difference?
• If you want more challenging again try to create a bigger catapult of course with the help of brother or your parents at home, and watch how the magnitude of the power of the catapult

See you again mate science in the next experiment, Be Smart, Always Fun and Creative ...

Hunting, fishing, catch, capture, archery and so is the way humans seek game, and in order to achieve the goal that people try to use various means and methods of hunting, and on how to get the game might be a different way.

There is a bit of a unique way of hunting that I have ever seen and I've also been trying to do, maybe this way is somewhat risky, and it takes patience and a high accuracy.

This method takes extra patience, waiting for the target to be hunted or visible surface and the target fish that are hunted.

Archery hunt or fish in the river or pond of clear water or strong currents this is an effective way to get the game without losing a result, why? as the result of having been exposed to hunting arrows we will not run away and we will easily pull it up without having to go down to the river or pond.

Equipment needed may not exist in the store or at the market, because the tool is the result of its own assemblies, equipment, among others:
1. Needle arrows
2. Thread rod
3. Reel fishing line
4. Catapult

1. Needle arrows
This needle is a modification of iron or nails are made in such a way to form an arrowhead, filed or grinded manner. Find a material that is not easily corroded (stenlees steel).





2. Thread rod
Fishing line is used here because of the flexibility and elasticity. We use a fishing line with a diameter of 0.45 mm were rolled into a scroll made of bamboo or other material that is formed in such a way with the handle for grip.



3. Reel fishing line
The rolls are made of bamboo in the middle holes, better roads we take bamboo bamboo near a tree stump, because the hole is rather small. Take a section approximately 1 out of bamboo and give the skin in a hole about 1-2 mm.





4. Catapult
Here serves as a trigger catapults to hurl arrows needle. The material can be of wood or tree trunk shaped like the letter Y. With a bicycle tire rubber strap and thread pelontarnya thick and strong as the needle hook arrow.



How merangkainya, fishing line is wound into a roll of bamboo then end of the thread was tied to the needle tip arrows.



Then a needle is inserted into the hole in the lint roller, with a pointed tip that leads to the outside. And the needle tip arrows tied fishing line is clamped at the end of the thread rollers grip rubber cover on old tires as the retaining clamps. Pinch the thumb.



Then attach the rubber catapult arrows in the middle of the needle that has a hole. Then aim at the target, pull the catapult towards the front like archery, remove the needle thread tongs. Needle sped toward the target.

If we stay immobilized target can roll the yarn can be lifted up game.

Remember, the thread rod should be tight and not loose as if it is loose at the time of needle arrows leveled again be turned towards us.

Here it takes patience and a high accuracy, because the target is always moving and this tool without binoculars. It only takes instinct.

You want to try it?

Catapult games provide fun and addicting game play for casual and serious gamers alike. Numerous catapult games are available online and as mobile apps for players looking for fun games on their phone. More complex challenges range from destroying polar bears to conquering neighboring kingdoms, while other games are based on simple goals of distance that require catapulted objects to be thrown as far as possible.

Crazy Penguin Catapult

Crazy Penguin Catapult is available online and as an app, including a free lite version for download. The game has received several recognitions and awards for its creative game play, sleek design, controls and user interface. The game premise is simple, as penguins are launched to complete missions against polar bears who have invaded and taken many of the flightless birds captive.

Catapult Madness

Players of Catapult Madness must save a kingdom under siege by throwing peasants as far as possible to get help from neighboring castles. The goal of the online game is to throw one of the peasants 50,000 feet. If you achieve this goal, players will unlock endless play mode or extra characters. High scores can be submitted online as well. Catapult Madness can be played online or downloaded as an app from Armor Games, Inc. It is their No. 1 selling game in the U.S. and abroad.

Crush the Castle

Crush the Castle is another popular series from Armor Games developed for the computer, iPhone and other mobile devices. In the game, players must destroy neighboring castles using careful aim and timing to knock the adjacent structures down. Crush the Castle 2 and Crush the Castle 3 offer similar storylines and game play with slightly more complicated maps and challenges.

Other Games

Armor Games has produced similar catapult games including Ice Castle Blaster and The Great Seige. The Great Seige provides more intricate story and complex game play, while Ice Castle Blaster offers arcade-style gaming. A variety of other generic catapult games are available from numerous gaming sites as well, involving launched animals and other objects.

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When you think of a catapult, you probably think of that huge wood structure ancient armies used to throw large rocks and other projectiles at the opposition. But the term "catapult" can be used to describe more than just these archaic weapons; think of a slingshot or the tool on aircraft carriers that launches fighter jets---these are both catapults. To create your own small and easy catapult, you'll only need a few office supplies.

Instructions

1 Make your elastic band smaller and tighter by looping it around itself.
2 Place the elastic bland around the metal ends of the paper clamp. The elastic should fit snugly around the clamp, but it should not force the clamp open. The elastic should be about a 1/2 inch away from the black part of the clamp.
3 Place the paper clamp upright on a flat surface so that it is standing on its metal ends. With the elastic around the clamp, the clamp should look like an "A."
4 Insert a pen through the structure beside the right metal end. Insert it under the black clamp and on top of the elastic band. Pull the pen through until half of it is sticking out on either side of the clamp.
5 Lay the clamp down so that the left metal end is lying flat. The right metal end should be perpendicular to the left metal end and the flat surface. The pen should be sitting atop the black part of the clamp horizontal to the flat surface.
6 Place a projectile---such as a crumpled piece of paper---on top of the pen where the elastic meets the metal end that is perpendicular to the flat surface. Hold the projectile in place with one of your hands.
7 Pull back the metal end of the clamp with your other hand and let it go. The projectile will go flying.

Building a catapult serves as an excellent class activity for lessons on projectile motion or medieval warfare. An engaging project, catapult building requires inexpensive construction materials -- such as wood or PVC -- and encourages as much innovation as possible in the designs. A catapult project challenges students to fulfill three main objectives: longer range, higher projectile weight capacity, and greater accuracy. Students are free to choose among several types of catapults which they can modify for optimum performance.

Trebuchet

The choice speed weapon in medieval Europe, the trebuchet -- also called the "Ingenium" -- survived up to a century after the invention of gunpowder. A trebuchet has four main parts: the frame, the beam, the counterweight, and the sling. It harnesses the potential energy of the suspended counterweight and uses that to hurl the projectile. Ideally, the counterweight weighs as much as 80 to 100 times the weight of the missile. Trebuchets are an excellent choice for catapult projects because of the straightforward scaling involved -- areas as the square of the lengths, and volumes and weights as cubes.

Ballista

Ballistas were the giant crossbows of the Greeks, which propelled massive darts or arrows along a straight trajectory using the torsion in two twisted skeins of rope, hair, or sinew. Because they have more moving parts than the trebuchet, model ballistas are slightly harder to scale, design, and build. Braided nylon is an excellent material for the cord bundle. The strength of this bundle will determine the ballista's missile weight capacity. Provided the frame is strong enough and the cords sufficiently twisted, a projectile can cover a long range with superb accuracy.

Mangonel

A mangonel, whose name comes from the Latin word "manganon" meaning "engine of war", is in essence a torsion catapult. Like the ballista, a sturdy twisted skein provides the driving force for its missiles. It has a throwing arm similar to that of the trebuchet, but instead of a sling, it uses a bowl- or spoon-shaped extension. It loses to the ballista in accuracy and to the trebuchet in the size -- though not necessarily the weight -- of the projectile it can throw. However, it can cover a longer range than the trebuchet and achieve faster missile speed. Students usually find mangonels the easiest to build.

Leonardo da Vinci's Catapult

Many consider da Vinci's catapult a vast improvement on the catapult designs of his age, although no records exist of their being built or used in battle. The design relies on a simple leaf spring for the energy needed to throw the projectile. This catapult uses a throwing arm similar to the mangonel, but longer and attached to a rotating drum at one end. Cocking the throwing arm causes the accumulation of energy in the leaf spring. When the throwing arm is released, this energy rotates the drum and gives the arm a huge amount of acceleration. This design is efficient and excellent for illustrating energy transfer among a machine's components.

Toy catapults are available in stores, but they are more fun to make at home. The most creative and determined catapult enthusiast will build a large backyard machine which will throw water balloons across the street. Those who are looking for a simple toy will build smaller machines for launches across a room. There are many types and sizes of catapults from which to choose for those who need distance or just some fun.

Mouse Trap Catapult

The mouse trap catapult is built from a wooden mousetraps with a metal clasp. This clasp will break fingers so caution in using this catapult is wise. The trigger mechanism, which is the loose piece of wire on the trap, is removed. A spoon is taped to the metal square, which is the piece of the trap that snaps onto the mouse. Tape the whole square and then pull the taped piece back. Load the spoon and let go. This is the simplest homemade catapult.

Backyard Ogre Catapult

The backyard ogre catapult shoots projectiles approximately 10 yards. The catapult is approximately 3 feet tall and is built with 2-by-3 or 2-by-4 boards. A simple square base supports a 3-foot-long arm which is attached to a bungee cord. The bungee cord pulls the arm forward to propel the object at the top of the board. A small basket, such as a cup or box, is attached to the top of the arm. The arm is attached to the base with a pin and hook, enabling movement.

Table Top Troll Catapult

This catapult resembles the ogre catapult on a smaller scale. The table top is approximately a foot high, including the base. The arm is attached to the base with a metal bar inserted through the wood. The bar is attached to the base and allows for ease of movement. The top of the arm includes a basket similar to the ogre. While the ogre uses a bungee cord for launching, the table top uses a rubber band cut into one long piece.

Teeny Tiny Catapult

The teeny tiny catapult is perhaps the least dangerous of all the catapults because it is so tiny. It is made from Popsicle sticks and masking tape. The arm is held with masking tape and the basket is a masking tape box. A rubber band, cut to a length of 5 inches, is attached to the arm and causes the slingshot action. This little catapult is perfect for kids as a craft project and for home use. The basket is only big enough to shoot small pieces of paper or other soft projectiles.