These methods are used to identify kinematic parameters without discomfort to the animal. Force plates, video/high speed cameras or 3D motion cameras cannot be used as there is no access to this software and technology, however the information that will be acquired in this study will use alternative software and methods that will support evidence obtained.
In the skateboard experiment, when a person was pushed with two different forces, the acceleration of the larger force allowed the person to accelerate more. A direct relationship between force and acceleration is formed. When force is applied, the acceleration also increases (assuming the mass of the person is same). This statement is supported by Newton’s second law, where the acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force. The equation that is extracted from the law, Fnet = ma, proves that when constant mass is divided into a larger force (numerator), acceleration should increase. In the second part of the skateboard experiment, two people, one heavier and one lighter, were
excited puppy – enjoying playing at ploughing, but of no practical help. In fact, he was a hindrance to a busy farmer, but his father tolerates him. The poem has several developed metaphors, such as the child following in his father’s footsteps and wanting to be like him. The father is sturdy while the child falls – his feet is not big enough for him to
Evidence #2 - "In the early days of rocket science, no one knew what the effects of weightlessness would be. Animals — mainly dogs, monkeys
From the first test, which had the dummies sitting upright, and the data was: 41ft/sec, 54 milisec collision time, and 21g-force exerted on the
To be specific, the hip protectors have been constructed to divert or absorb the energy of the fall. The hip
In the lab of “The Falling Eggs and Automotive Lab”, we had to design a protective device able to hold the egg and allowing it survive from the impact of hitting the ground from the top of the staircase. We did this lab to investigate newton’s Laws and prove how they work. In the lab, we have to observe the forces that act on the egg and evaluate the way they work. We do this lab with an egg to relate to a real life collision with a car. The egg is essentially the person and the device that the egg is in is the Airbag. We use our knowledge about airbags and apply that to this lab in order to make the egg survive and not crack.
Alley Cat Bowling In the last couple weeks we have been studying the different types of energy, There are many type of energy ( ex: Potential and Kinetic) Were the main two energies used in the Alley Cat bowling experiment. Potential energy is the energy stored up in an object
Leon Wan ENG 2D-03 Ms. Gordon February 6th, 2017 Can cats survive all falls? Topic: Animals, Science Ratings: Fascinating, Informative Description: William Shakespeare referred to the myth “A cat has nine lives” in his play Romeo and Juliet, which arguably came from cats’ ability to always land on their feet. The biped of ancient Egypt was fascinated by the feline arts of swiftness and tenacity for their remarkable survivals from high falls. In this short, interesting talk, Leon shares the science behind these amazing skills of cats.
Hair cuticle examination: The cuticular makes up the outermost layer of hair and consist of overlapping scales. The cuticular comprises of various shapes that are unique among species and are therefore valuable for identification purposes . The cuticle was analysed based on four properties; the position of the scales in relation to the longitudinal axis of the hair, the structure of the scale margin, the distance between scales and the scale pattern.
Occasionally when my dogs are pooping, they will waddle around in their hunched over position. I believed this would be similar to when they circle their beds, and they were just trying to arrange the ground slightly. But, apparently, many dogs prefer to poop while aligned with the geometric north and south directions. Scientists are not sure why they prefer to poop in the northern or southern direction but found that many dogs avoid pooping while facing either east or west. There may not be any underlying reason other than an internal instinct. But now I know why my dogs do the weird poop waddle.
Proteins that are produced by living cells are known as enzymes. Enzymes are catalysts – they increase the rate of a chemical reaction by lowering the activation energy. The enzyme has an active site to which the substrate, or substance acted upon, binds, forming an enzyme-substrate complex. This active site, which is determined by the sequence of amino acids, is specific to which substrate it binds to, known as the lock-and-key theory. (This theory has been modified to the induced fit theory, which states that an enzyme will slightly change shape to accommodate a substrate.) The enzyme is not used up in the reaction; rather, it can be reused to keep converting substrate to products.
An intriguing experiment was conducted in 2015 by Merola, Lazzaroni, Marshall-Pescini, and Prato-Previde. They coordinated this examination to understand the relationship between a cat and its owner. They wanted to see if the owners' input about an object influenced the cat’s action and behavior towards the object (Merola, Lazzaroni, Marshall-Pescini & Prato-Previde, 2015). The test included thirty-six cats and all the owners were female except for one male owner. Out of these cats, there were different numbers of cat that were neutered and tom cats. As well as, different sexes. Each cat was tested individually in a testing room. The cat was allowed one minute to explore the room at the beginning with the owner in a set position and relaxed.
THE SCIENCE BEHIND; Why cats always land on their feet Felines, such interesting animals, varying from a large ferocious lion to a meer house-cat. These creatures are powerful and very intelligent animals, with the occasionally clumsy cat. One of their most used skills is their ability to leap, jump or fall and always land on their feet. They make it look so easy. But do not be deceived, there is actually some complicated feline effort and science that goes into their graceful tumbles and leaps.
Animal gait analysis will be performed in special walkway maze before the DMM surgery and four months later after surgery. All experiments will be performed during the same period. Briefly, animals will be trained to cross the walkway maze daily before DMM or sham operation. During the test, each animal should be placed individually in the catwalk maze, which consists of glass plate and Plexiglas partition walls.The mouse is allowed to walk freely and traverse from one side to the other of the walkway glass plate. Two infrared light beams spaced 90 cm apart will be used to detect the arrival of the mouse and control the start and end of data acquisition. An LED light from an encased fluorescent lamp is emitted inside the glass plate and completely