E3laan Horse Blankets

Tail Extension Bag

Every flying thing, whether it's an airplane, spacecraft, soccer ball, or flying kid, experiences four aerodynamic primary forces: lift, weight, thrust and drag.

An airplane uses a propeller or jet engine to generate thrust. The wings to create lift. The smooth, pencil-thin shape minimizes drag. And the molecules that make up the airplane attributes to the weight.

Let's find out what are all the parts of an airplane for. You'll need to get a cheap balsa wood airplane for this next part - check out your local drug store or toy store. I've even found them in grocery stores for about $2.

Take the balsa wood airplane and try to fly just the body (no wings or fins). It flips all over the place. Try flying just the large wing (no body). Somersaults!

Now slide the large wing into the body and fly (fewer somersaults, but still sickening to fly in!).

Now add a horizontal stabilizer (elevator) tail, and when you throw it, add a slight curve so the plane "fishtails" in the air (like a car)... but did you notice that there are no more somersaults?

Add the vertical tail (rudder) and see how it now steers straight no matter how to curve-throw it.

Sneaky Tip: if you remove the metal clip on the nose beforehand, you can add it last to really see what it's for... notice where most of the weight is without the clip?

Let's make more things that demonstrate these flying ideas!

Helicopters: Cut out a paper rectangle 5 by 2 inches. Cut lengthwise down the strip, stopping about an inch before the end. Tape this uncut inch to the end tip of a popsicle stick. Fold the "bunny-ear" flaps down in opposite directions. Throw off a balcony and watch it whirl and gyrate! (Optional: You can notch the end of the popsicle stick to make a sling-shot helicopter. Make a quick slingshot launcher by looping a rubber band to another popsicle stick end.)

Butterfly Cups: Tape two Dixie paper cups together, bottom-to-bottom. Chain together six rubber bands. Loop one end of the rubber band chain over your thumb and hold your arm out horizontally straight, palm up. Drape the remainder of the chain along your arm. Place the taped butterfly cups at the free end (near your shoulder) and slowly wind the rubber bands around the middle section of the cups. When you wind near the end, stop, stretch the chain back toward your elbow, make sure the rubber band comes from the underside of the cups and release. The cups should rotate quickly and take air, then gracefully descend down for a light landing. Try making one with four cups.

Hot Air Balloons: Shake out a garbage bag to its maximum capacity. Tape (use duct or masking tape) the open end almost-closed... you still want a small hole the size of the hair dryer nozzle.

Use the hair dryer to inflate the bag and heat the air inside (make sure you don't melt the bag).

When the air is at its warmest, release your hold on the bag while you switch off the hair dryer. It should float up to the ceiling and stay there for a while. This experiment works best on cold mornings. The greater the temperature difference between the bag's air and the surrounding air, the longer it will float.

Parachutes: Attach a piece of floss or thin string to the four corners of a tissue. Attach a stick, a small wad of stones wrapped in another tissue, a pinecone, etc. to the centers of the string. Practice dropping these from the balcony and see which falls slowest with which load.

Ring Thing: Cut an index card into thirds lengthwise. Loop one strip into a circle and tape ends together. Place two remaining strips together end-to-end and tape, then loop into large circle and tape in place. Place a piece of tape across one end of a straw and gently secure one ring to the tape. Repeat on the other end with remaining ring. Make sure the two rings are concentric (you can see through both like a telescope). Throw it small-end-first!

Free Form Machines: Make an obstacle course with some or all the following different challenges:

-Hit a target balloon (arm the machines with opened paper clips)

-Go over and under a suspended length of string

-Make it through a hula hoop suspended vertically or horizontally

-Carry a jelly bean passenger safely across shark-infested waters (two tables spread apart)

-Dangle large paper airplanes (made from 11x17" paper, or two 8.5x11" papers taped together to make an 11x17") from the ceiling for a 'dogfight' to earn points if you tag one

-Shoot through the basketball hoop, and dive into a basket.

Since 1996, Aurora Lipper has been helping families learn science. As a pilot, astronomer, engineer, rocket scientist, and former university instructor, Aurora can transform toilet paper tubes into real working radios and make robots from junk in the back desk drawer. You can download the free science experiment workbook at http://www.SuperchargedScience.com

Centaur Horse Tail Extension Bag $12.95 Centaur Tail Extension Bag. Protect your investment The 45" horse Tail Extension Zip-Up Bag protects tail extensions from dust and damage.

Firstgear Onyx Tail Bag $89.96 Firstgear Onyx Tail Bag.

Centaur Lycra Tail Bag $4.95 Centaur Lycra Tail Bag - A grooming essential. Keep your freshly washed tail cleaner in this tail bag. Easy to apply.

Firstgear Silver Stone Tail Bag $116.96 Firstgear Silver Stone Tail Bag.

Basic Nylon Tail Bag Red $3.99 Basic Nylon Tail Bag Red

Basic Nylon Tail Bag Blue $3.99 Basic Nylon Tail Bag Blue

Basic Nylon Tail Bag Black $3.99 Basic Nylon Tail Bag Black

Basic Nylon Tail Bag Green $3.99 Basic Nylon Tail Bag Green

Basic Nylon Tail Bag Purple $3.99 Basic Nylon Tail Bag Purple

Basic Nylon Tail Bag Navy $3.99 Basic Nylon Tail Bag Navy

Select Tail Bag Neoprene Base $11.99 Tour Master Select Tail Bag Neoprene Base

Select Tail Bag Rain Cover $9.99 Tour Master Select Tail Bag Rain Cover

Select Tail Bag Shoulder Strap $7.99 Tour Master Select Tail Bag Shoulder Strap

Select Tail Bag Buckle Strap $11.99 Tour Master Select Tail Bag Buckle Strap

Select Tail Bag Strap Protector $11.99 Tour Master Select Tail Bag Strap Protector

Tail Bag $69.95 Ogio Tail Bag Universal web mounting system Textured neoprene pad for paint protection Two molded side pockets Top organizer pocket Reinforced handle Dimensions: 240 cubic inches of expansion volume Integrated rain hood 14"h x 13"w x 7"d [ 10"d expanded] 1274 Cu.In/20.8 L 2.2 lbs/0.99 Kg 420 dobby nylon / 420D dobby nylon / tarpaulin / textured neoprene Click Here for Additional Luggage Information

Lycra Tail Bag Black $3.99 This nylon/spandex tail bag is designed so there will no loss of tail hair. Protects from dirt while preventing hair from breaking. Also smooths the tail hairs. Tail bag measures 221/2" in length (30" overall including ties).

Lycra Tail Bag Blue $3.99 This nylon/spandex tail bag is designed so there will no loss of tail hair. Protects from dirt while preventing hair from breaking. Also smooths the tail hairs. Tail bag measures 221/2" in length (30" overall including ties).

Lycra Tail Bag Red $3.99 This nylon/spandex tail bag is designed so there will no loss of tail hair. Protects from dirt while preventing hair from breaking. Also smooths the tail hairs. Tail bag measures 221/2" in length (30" overall including ties).

Cashel Horse Tail Bag $9.95 Cashel Horse Tail Bag. Superior quality and durability the Cashel tail bag prevents dirt manure breeding and chewing foals from damaging your horse's tail. Adjustable elastic top and sturdy hook and loop closure makes it easy to put on and stays in place.