Sentences with phrase «of air resistance»

The errors in the projections were due to applying a model that was valid for special cases under laboratory conditions, but did not take into account factor of air resistance.
Moreover, a 0.27 Cd of Air Resistance Coefficient, the highest in the segment, was achieved by applying design elements that enhance aerodynamics.
For a person running at a typical casual runner's pace of 2.5 meters per second (9 km / hr, or 5.6 mph) it can be shown, based on data collected by LG Pugh for the study titled «The influence of wind resistance in running and walking and the mechanical efficiency of work against horizontal or vertical forces,» that the energy cost of air resistance while running on solid ground is roughly 0.84 calories per kilometer (this is equivalent to approximately an extra 1.2 % calorie burn relative to a runner on a treadmill).
The intent of the treadmill factor (TF) used within this running calorie burn calculator is to account for the presence or absence of air resistance.
Apart from the running calorie burn considerations discussed above, this running calorie burn calculator also takes into consideration the absence or presence of air resistance while running, based on whether or not the runner is on a treadmill (i.e. no air resistance to overcome) or solid ground (i.e. air resistance must be overcome).
As downhill skiers can exceed speeds of 120 km / h, they are subjected to high levels of air resistance, and must adopt a tuck position to reduce this.
When Nelson speaks of losing time by opening up in a jump, she is talking about how much her momentum is slowed by her body slamming against a wall of air resistance.

Not exact matches

The skater crouches forward (as if he was skating in a squat position) to reduce drag caused by air resistance on the front of his body, and to help him balance.
Musk proposed in 2013 that a hyperloop system, which is similar to a magnetic levitation (maglev) train but runs through a low - resistance tunnel with much of its air removed, would cost $ 11.5 m (# 9.4 m) per mile to build.
A press release distributed by Norway Post explicitly mentioned some of the Tesla Semi's main design features, such as its low air resistance, automatic emergency braking, Autopilot technology, and its capability to cover up to 500 miles on a single charge.
Spongy white interior with a little resistance and lots of lovely tiny air pockets.
In 1977, more than 30 years after he parachuted behind enemy lines to aid the French resistance (he was later wounded and captured), he was feted at a Frenchman's party as the crazy American who dropped out of the air with a fishing rod tied to his leg.
When the highest attainable speed is reached, we squat low on our snowshoes [skis] to prevent retarding speed and to offer as little front as possible to the resistance of air...»
Starting from scratch pad, Brodeur juggled equations dealing with gravity, air resistance and ball spin, and while his Y = 1/2 GT ¬ ¨ ¬ ® «Äö √ cents ¬ ß (in which Y stands for the downward pull of gravity on the ball from a horizontal plane, G for gravity and T for time) is not on the order of E = mc ¬ ¨ ¬ ® «Äö √ cents ¬ ß, it did prove that the fastest serve possible is 140 mph.
A change to the seams has reduced air resistance on baseballs, and between that and the sudden desire of so many players to hit fly balls, we've got ourselves a whole bunch of dingers we didn't have even just a few years ago.
Using everyday items like bottles, cardboard, glue and tape, you can build awesome rocket ships, launch pads and solar systems to learn more about scientific concepts like Newton's Laws of Motion, speed, gravity and air resistance.
Crouching down reduces air resistance as you make yourself smaller and hide behind the handle bar of the scooter.
Recreation Director Gary Major also asked for an air hockey table and Ping - Pong tables for the teen area and a gazebo in the northeast corner of the park, but his requests met with resistance.
The gel is great for resistance — so the stars don't immediately fall to the bottom of the bottle, and the little air bubbles inside the gel simulate all the little stars in the galaxy.
While British forces are taking part in air strikes on IS targets in Iraq, they are not involved in the US - led coalition targeting Syria due to resistance from opposition parties still mindful of previous unpopular interventions in Iraq and Afghanistan.
It is like the strong air resistance of air a bicycle rider experiences.
The balls, though made of different materials, met little air resistance and landed at the same time.
Even though they ate the same food, the mice living in dirty air developed metabolic changes characteristic of insulin resistance while the other mice did not.
Galileo's work wasn't all staring at the sky, either: His studies of falling bodies showed that objects dropped at the same time will hit the ground at the same time, barring air resistance — gravity doesn't depend on their size.
While it takes a charge of more than 5000 volts to overcome the resistance of the air and create a spark, smaller unseen discharges can cause a wide range of problems in electronics equipment — from intermittent faults in circuits to the disruption of computer systems.
As the descending body penetrated deeper, air resistance probably caused it to explode in an airburst with a strong flow of heated gas that was carried downward by its tremendous momentum.
When the researchers attached the sensor to a violin playing the wedding tune «Salut d'Amour» by British composer Edward Elgar, for example, the resistance of the device varied in sync with air vibration produced by the instrument, correctly recording every note of the song.
As a result, two objects dropped on Earth's surface should accelerate at the same rate (neglecting air resistance), even if they have different masses or are made of different materials.
In the three - year study, researchers from Radboud University Medical Centre and The University of Manchester compared resistance profiles in 230 fungal samples, collected from rural areas in West Yorkshire which were treated with fungicides, to 290 air and soil samples from inner city sites across Greater Manchester.
Current testing requires a series of methods including a spirometry test, which measures the amount (volume) and the speed (flow) of air during breathing, followed by a body plethysmography test measuring static lung volumes and airways resistance and finally a diffusion test, which measures the amount of oxygen and other gases that cross the lungs» air sacs.
Biomechanists Andy Ruina and Mario Gomes of Cornell University in Ithaca, New York, wondered if a walking or swinging robot — as long as it had no friction in its joints or air resistance — could achieve the same feat.
In the past, attempts have been made to create photovoltaics that could be incorporated into textiles, but typically they lacked at least one of the important properties — long - term stability in both air and water, energy efficiency, and robustness including resistance to deformation — that are key to successful devices.
On account of the sharpness of the angle of advance presented by the forward planes it is impossible to obtain any higher speed when the machine is in the air, as the great air resistance encountered by the aeroplane when flying at so sharp an angle consumes the entire horse - power.
New research shows that growing up in areas where air pollution is increased raises the risk of insulin resistance (the prescursor to diabetes) in children.
«Air pollution increases risk of insulin resistance in children.»
The drag coefficient is coded into the game's software to simulate air resistance, which greatly affects the pace at which an object rises and falls in the shape of a parabola.
The researchers found that in all crude and adjusted models, levels of insulin resistance were greater in children with higher exposure to air pollution.
«Oxidative stress caused by exposure to air pollutants may therefore play a role in the development of insulin resistance.
He concludes: «To our knowledge, this is the first prospective study that investigated the relationship of long - term traffic - related air pollution and insulin resistance in children.
«The ball moves at its fastest velocity when it comes right off the foot, and air resistance immediately slows it down until it reaches its maximum height,» says John Eric Goff, Lynchburg College physicist and author of Gold Medal Physics: The Science of Sports.
Strange ball behavior in earlier versions of the game has been traced to an error in the way air resistance was calculated
These intriguing findings suggest that longer - term exposure to PM air pollution may promote the chronic development of insulin resistance, obesity, and the metabolic syndrome.
It can be anywhere from four to 42 times the resistance of air, to tone your muscles from all directions so you gain strength, agility, and flexibility.
A lot of exercise bicycles use magnetic resistance, but those using air resistance are also popular these days.
However, it has been shown that strength work can lead to as much muscle growth as bodybuilding hypertrophy work — which then leaves some of the traditional thinking around resistance training up in the air.
Basic squats also referred to as air squats or bodyweight squats is a form of squats that solely uses one's bodyweight without any additional resistance or fitness equipment.
A study titled «The influence of wind resistance in running and walking and the mechanical efficiency of work against horizontal or vertical forces,» by LG Pugh, has shown that there is an increased energy cost of running on a solid surface, as opposed to on a treadmill, due to air resistance.
The air resistance design has been around since the 1980's and has become the standard model for the sport of indoor rowing.
The concept 2 rowing machine is an example of one of the most popular air resistance rowing machines on the market that have been adopted by many health clubs as well as rehabilitation centers and is the first pick for indoor rowing competition around the globe.
Air Resistance: These are perhaps the most popular type of rowing machines on the market today.
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