Elastic ligatures are commonly used in orthodontic treatment to hold the archwire in place on brackets. They provide gentle pressure to move teeth into the desired position and allow for easy adjustments during treatment.
Elastic material was first introduced in the early 19th century as rubber bands. The modern elastic we commonly use today was further developed and popularized in the early 20th century.
To calculate the elastic potential energy of an object, you can use the formula: Elastic Potential Energy 0.5 k x2, where k is the spring constant and x is the displacement of the object from its equilibrium position.
Elastic potential energy is the energy stored in an elastic material (like a spring or rubber band) when it is stretched or compressed. It is calculated as 1/2 * k * x^2, where k is the spring constant and x is the displacement from the equilibrium position.
Katie Norris and Demi Williams in 1894, 10 years after elastic had been discovred.
"Flexibility" is one word that encompasses both elastic and non-elastic properties.
Mathieu pliers
Two types of rubber bands that are available for braces are single elastic ligatures and connected elastic ligatures. Both ligatures are available in a variety of colours and would need to be changed at every appointment as they lose strength over time.
Mostly clarinets and saxophones use ligatures but there might be a few obsolete instruments that use ligatures.
hippocrates
www.Archwired.com has a thread with loads of pics of coloured ligatures.
Linkers/ligatures.
A ligature is part of a woodwind instrument you use to keep the reed in place. A ligature is, by definition, is something that binds or holds in place. Handcuffs are an example.
They can be both depending on the material used.
If you are using a commercial pattern, you can find the elastic requirements on the back of the envelope. For children's clothing such as pjs, I like to use the "soft stretch" elastic. I also use the non-roll elastic quite a bit. Don't be embarassed to ask for assistance when you purchase your elastic. Sewers are the nicest people!
Depending on your elastic's thickness and how much fabric you are guiding into the elastic, I would use a standard needle (12) with a stretch stitch on my machine. Kate
I would use elastic. Works on my underwear.
Ambroise Paré (1509–1590 AD) became the greatest surgeon and sur-gical writer of the Renaissance when, after being rejected by medical schools, he was educated by the army on the battlefields. He saved thousands of lives by ending the use of burning oil to cleanse wounds and teaching the use of ligatures in amputations