Skip to main content

Birds are the best engineers

 Birds are the best engineers 
Nature, Leaf, Insect, Flora, Wildlife

The term “bird’s nest” has come to describe a messy hairdo, tangled fishing line and other unspeakably knotty conundrums. But that does birds an injustice. Their tiny brains produce marvels that have long captured scientific interest as naturally selected engineering solutions.
One effort to disentangle the structural dynamics of the nest is underway in the lab of Hunter King, an experimental soft-matter physicist at the University of Akron in Ohio.

“We hypothesise that a bird nest might effectively be a disordered stick bomb, with just enough stored energy to keep it rigid,” King said.


King and his colleagues seek to answer simple questions: What is the underlying mechanical principle behind the bird nest’s construction strategy? What are the statistically robust characteristics of “the nest state”? That is to say, what separates a nest from the same sticks and twigs collected into a tight bundle or scattered helter-skelter?



For the study, King chose the cardinal. As King and his collaborators wrote in the proposal: “When a cardinal builds her iconic cup-nest, she uses her own body as template and molds twigs, grass strands, and bark strips into a structure that, despite its softness, reliably holds its shape against mechanical perturbations.”

King has explored how the materials in the artificial nest pack together, and how the ensemble absorbs energy. So far, they observed what King called “a steady state hysteresis caused by reversible slippage.”
It describes how a physical system behaves differently depending on what was done to it previously. Hang two 1-pound weights from a rubber band, then remove one. With only one weight remaining, the band will be still stretched farther. That is hysteresis.
Nest, Birds, Make A Nest, Branches


Something similar happened with the “nests”. The sticks were slowly compressed to maximum stress, and then released, repeatedly. During each cycle, the sticks compressed a little more and then bounced back, but only partway; this was hysteresis. Eventually, for any given skinniness of stick, the system founds its maximum, or steady state, density.

Comments

Popular posts from this blog

Should people do these in Corona infection

Should people do these in Corona infection? Doctors said,how to treat organ transplants from the Covid 19 infection. People who are healthy can recover from this corona infection. At the same time, people with various illnesses are most affected by this infection. If your immune system is poor, you should be very careful not to get infected with coronavirus. Patients, especially those who have undergone organ transplantation, need to be very careful. Covid - 19 is at risk of harming anyone. Therefore, it is imperative to be proactive.  Should I Postpone My  Body Transplant Surgery?   If it is a must-have alternative, it should not be delayed. However, your doctor should make sure that the person who donates the body to you is not infected with coronavirus or any other infection. If they have something like this, your doctor should not seek organ donation from the donor. In such cases you may want to rethink your surgery until you find a healthy person who will donate

Mornig Habits that keep you fit

Good morning habits that keep you   fresh throughout the day Today I will talk about what are the good morning habits that keep you   fresh throughout the day. Morning is the time that lays the foundation for our whole day. If our morning is good, then our whole day is good. But in this run-of-the-mill life, we make our morning hours so busy that we are unable to do all our tasks well and create a bit of tension in our mind. In the morning especially women have to prepare Tiffin for her husband and for her children. Some sisters even go outside the house for some work or job. The morning time is even more full for them. Many times women unable to do her morning breakfast well and goes away like this. But there are some habits that if we adopt them, we can lighten our busy lives. Let's know which that habits-are Light dinner at night Eat  a  light , healthy, small  dinner  every  night   and see how easily you fall asleep. You'll wake up happy, fresh

Know More About Pain

  PAIN Pain is now an integral part of all sorts of people's lives. No one here can say that he does not feel such pain. How much does human suffering affect the daily life of such a person? Are the human beings in a hurry today, with just enough awareness of pain? What are the consequences of following a number of ways to find the cause of the pain and not only cure it but also reduce the pain? Why is pain coming? What solutions will work? It is important for everyone to know such things. The purpose of this article is to elaborate on it. Pain and some understanding ... Neck pain, back pain, arthritis, shoulder pain, etc. All of us have had at least one pain. How touching is a feeling is a feeling of pain. If thorns are torn in our hands, there will be hurt and pain. Pain is a symptom. The cause of this pain is the thorns and torn skin. We must first understand this concept. So the pain in the neck is a sign. What causes it, whether it is due to organs in our body, or environm