Mirages

What is a mirage? 

I have heard many people ask this question, so I have decided to write my perspective about it in the form of a blog. 

There are two types of media, the media that is closer to the ground is called Rarer media and the media that is closer to the sky is called Denser media. when light passes through these 2 medias, it (light) bends, known as a process called refraction. When the angle of incidence is very high, the Rarer media acts like a mirror and what you see is the reflection of the sky. So, what appears as water is simply an optical illusion. Note that mirages mostly happen when you are dehydrated and can happen anywhere.

Hope my information gave an easier understanding about mirages.

Tendons & Ligamenets for a 5th Grader.

LIGAMENTS

Ligaments are stretchy bands of tissue that, in most cases, hold one bone to another. They are a key part of what allows most joints to move, help control their range of motion, and stabilize them so that the bones move in proper alignment. Some parts of the peritoneum, the membrane that surrounds the abdominal cavity, are also called ligaments although they perform a different function.

Structure

Proteins known as collagen make up the tissue in most ligaments. Groups of these proteins form long, flexible, thread-like strands, or fibers. Collagen fibers are found throughout the bodies of humans and other warm-blooded animals, as they help the skin stay elastic and also make up most types of connective tissue. The composition of these fibers allows them to stretch significantly when they move, such as when the elbow is bent or straightened. Collagen fibers are often arranged in crossing patterns, which helps prevent the joint from moving past its normal range of motion despite the ligament's flexibility.

Types and Function

Connective tissues generally serve to protect organs, store energy, support body structures, or connect other tissues. Most ligaments fulfill the last function and help flex or extend a body part; these are called joint or articular ligaments. In the elbow, for example, the ulnar collateral, radial collateral, and annular ligaments work together to allow the joint to move. They are found in the head and neck, pelvis, wrist, and knee, among other places. Each joint typically contains at least three, with the knee having eight.

Other ligaments, such as those found in the back, mainly provide stability to bone or cartilage. If the structure primarily strengthens or supports other ligaments, it is called an accessory ligament.

Injuries and Treatments

Because ligaments play an important role in stabilizing the joints, they are very susceptible to injury due to overuse or sudden movement. Regular stretching can increase the length and flexibility of the muscles and by extension the ligaments. This strengthens the joints, helping to prevent injury and allowing them to move farther and support more activity.

TENDON

Tendon or sinew is a tough band of fibrous connective tissue that usually connects muscle to bone and is capable of withstanding tension.

Tendons are similar to ligaments; both are made of collagen. Ligaments join one bone to another bone, while tendons connect muscle to bone.

A tendon, or sinew, is a cord of tissue that attaches the end of a muscle to a bone or other part of the body. It is composed of bundles of white fibrous tissue surrounded by a sheath. This tissue enters the bone and blends with the fibers of the bone. A tendon is inelastic but flexible and very strong.

The tendon's job is to carry the force of muscular action to the bone that is to be moved. It can do this because it acts like a rope and does not stretch. If the tendon normally stretched, the muscular force would be lost. Athletes often pull a tendon, which results in a painful and disabling injury. Tendons permit control from a distance, an important principle of muscular action. Thus forearm muscles move the fingers through tendons in the hand.

Many tendons are located near the skin surface. Perhaps the most familiar is the Achilles tendon, which connects the calf muscles to the heel bone. It enables the foot to push against the ground when a person walks. The hamstring tendons are the great tendons of the thigh muscles. They are located behind and at each side of the knee joint.

Their strength and toughness make some animal tendons useful as sutures in surgery. Such sutures may be dissolved by body fluids and absorbed.

How does coins & stamps/seals help us learn about civilization

1.      Ancient coins & stamps helps us know about the past.

2.      Unlike historical texts that may have been altered, Coins present a true snap shot of that time.

3.      Based on the type of material used and its purity, we can understand the metallurgical capabilities of the civilization.

4.      We can know the culture & heritage of the kingdom.

5.      We can also get to know the name of the ruler / period of his ruler.

6.      Coins help us establish the predominant language in use.

 

Configuring the Watchon IR remote application on Samsung S4 ( Du , UAE)

So the Samsung S4 released over a year back.  and wow what a phone.   I had to get my hands to one. and so I did in July 2014.

One of the stand-out features it had was that it featured an inbuilt IR blaster, for handling control of every day appliances around the house.

It was surely cool.   It came shipped with a native application called "watch on"  which allowed me to control my home theatre, ( ONKYO) , TV ( LG) & Apple TV.   But since the DU Set top box was not working.   none of the remote codes would work.  I can tell you I did try a couple of them.

several request for assistance to the software team behind the app, did not get me any reply.

since the most I wanted the remote is for changing channels on the STB, I never bothered much about the application, until I found that the remote of the STB finally gave up, and there was no easy way to press the OK key, without seriously impairing your fingers.  and the kids or the mom just couldn't press Ok. ( center button on the remote)

I gave it another try, this time I was clever to look underneath the set top box and voila I found that the set top box was from a Taiwanese / Chinese company called TATUNG

I sat to reconfigure my watch on on my S4, and it was done under 2 minutes flat.  

I was changing channels & changing volume right from my lock screen on my S4..

all I can say is a BIG THUMPS UP!!!  hope some one who has similar problem can try this and let me if they met success.

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