3.8 Km/sec To Miles/year – 2 Galileo Galileo’s experiment to measure the speed of light. One assistant opens the closed lantern, and Galileo begins the countdown. The second assistant stands at some distance and opens the shutter of his lantern when he sees the light of the first lantern. Galileo stops the countdown when he sees the light of the second lantern.
4 Roemer Roemer noticed that the motion of Jupiter’s moons changes with the seasons. He realized that it wasn’t the movement that was changing, it was the time it took light to reach the Earth. Note that the distance between them changes as the Earth and Jupiter move around the Sun. Roemer calculated distances and times and then used this information to calculate the speed of light.
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5 Fiso Fiso measured the speed of light with a gear wheel. The gear was turned, and at a certain speed the image in the viewfinder disappeared. This meant that the incident beam from the half-silvered mirror passed through a slot in the wheel, and the reflection from the far mirror was blocked by one of the teeth. Knowing the speed of the wheel, Fizeau calculated the time it took light to travel from the wheel to the mirror and used that to calculate the speed of light.
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6 Foucault Similar to Fizeau, but instead of a gear, he used a rotating mirror. Foucault also measured the speed of light in water by placing a rotating mirror at one end of a tank of water and a fixed mirror at the other end.
7 Michelson Michelson (the first American to win the Nobel Prize in Physics) used Foucault’s idea of a rotating mirror, but increased the distance by placing the mirrors in mountains 35 km apart. This minimized the percentage error caused by the increase in light transit time.
In order for this website to work, we record user data and pass it to processors. In order to use this website, you must agree to our Privacy Policy, including our cookie policy. According to Tesla, their goal is to develop a car that gives people the freedom to travel wherever they want. The automaker has been true to this ethos since the launch of the first Model S in 2012. This first Model S traveled 265 miles on a single charge. Since then, the battery capacity has increased significantly to allow longer range.
In addition, Tesla estimates that cars in the future will have a range of more than 500 miles. Many technologies and improvements are used to create such models.
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The Tesla Model S Long Range Plus currently has the longest range. The 2020 model offers an EPA-rated range of 412 miles. That’s 20% more than the 2019 model, which traveled about 270 miles on the highway on a single charge. The battery pack design is the same, but the range is better.
The improved lineup reflects Tesla’s goal of maximizing vehicle and powertrain efficiency. Several changes have been made to the Model S to improve efficiency and range. The 412 mile EPA rating is available for all Model S Long Range Plus vehicles.
To make the Model S more efficient, Tesla has improved the engine, battery, aerodynamics, and vehicle weight.
Tesla reduced the weight of various components on the Model Y and Model 3 before shedding weight on the Model S. Significant weight reduction changes the overall structure and design of the vehicles. However, according to Tesla, the weight reduction does not affect the performance and comfort of the Model S. To make each Tesla lighter, the automaker is focusing on using lightweight materials and manufacturing seats in-house.
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One way Tesla achieves greater range is by reducing air resistance. Model S 8.5-inch wheels provide reduced aerodynamic drag, increasing range by 2%. These wheels are combined with advanced tires that reduce rolling resistance.
The engine, transmission and oil pumps have become more efficient. Tesla uses their MATLAB model, which they spent 10 years developing, to analyze the performance of each component in their vehicles. This model checks all areas where the car is losing energy and then the engineers make adjustments to ensure the car maintains the highest levels of efficiency.
Switching from a mechanical oil pump to an electric one ensures that the vehicle is adequately lubricated regardless of its speed. In addition, the automaker has upgraded the vehicles to increase range by 2% when driving on the highway.
Tesla Model S has the largest battery. The first Model S, released in 2012, offered an 85 kWh battery pack. Tesla has since improved this battery pack, increasing its capacity by about 15%. What sets the Model S apart from other Tesla models is that it allows drivers to use almost the full capacity of the battery pack.
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With Tesla, the driver has the freedom to choose how much he will charge the battery. Tesla recommends charging no more than 90%. However, you can use the full capacity of the battery.
Regenerative braking on the Tesla Model S sends energy back to the battery. The HOLD drive function corresponds to the vehicle’s physical brakes. This system brings the vehicle to a smooth stop and operates at a lower acceleration rate and lower speed.
Some critics point out that a range of at least 200 miles is sufficient for all drivers. According to an article on CNN, most people drive no more than 40 miles each day and can charge at home overnight. Batteries that provide over 200 miles are just perfect when you need to go on a road trip. The same article notes that more people need better charging stations.
Tesla offers both long range and higher quality charging stations. The automaker currently has more than 1,000 gas stations in the US alone. These superchargers provide high-voltage charging, allowing you to travel 160 miles after a 15-minute charge. This is a big improvement over the previous version of the supercharger, which offered an extra 70 miles on a 15-minute charge.
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Even though Tesla focuses on batteries and efficiency, they still offer premium features and enhanced safety for their vehicles. They can reduce mass by shedding unnecessary weight, but they still have advanced features like automatic lane change, autopilot navigation and smart calling.
The original Tesla Roadster offers the lowest range of any Tesla model. Tesla called the original Roadster the fastest electric car in the world. The Roadster is still the fastest EV supercar, but the original model wasn’t as successful. Tesla was still a new company and they were trying to make the car work.
When Tesla started in 2003, Elon Musk wanted to license and replicate AC Propulsion technology. As it turned out, the technology was analog, not digital, and they had to rewrite every code to fit their needs. Another problem was that the AC Propulsion battery used air for cooling. This method did not provide enough cooling for the battery that provided so much power to the electric car.
There were so many problems with the roadster, but that didn’t stop Tesla from moving forward towards its goals. Elon Musk has been known to sleep in the manufacturing area for most of the day to make sure everything runs smoothly.
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Tesla offers larger batteries in its vehicles. However, there is much more to these batteries than their capacity.
Tesla uses innovative materials to make batteries lighter and more durable, and to give them more capacity without increasing their size. Recent battery improvements promise to reduce the cost of batteries by 56% in the company’s quest to make affordable electric vehicles, but that will be a few years away.
A wider range is achieved through a combination of advanced battery chemistry, improved cell design and an improved cell manufacturing process. The company currently uses cobalt in its batteries, but they plan to use nickel in the future.
Another advantage is the use of tableless cells, which are less prone to overheating. The company also plans to start mining lithium to make batteries cheaper. There are many technologies that Tesla uses in their car batteries and many more are under development.
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Over the years, Tesla has improved its battery manufacturing process to make it more efficient. Each battery delivers increased efficiency and lasts longer.
Before the EPA gives an electric vehicle a rating, it goes through rigorous testing, during which the vehicle is tested until the battery is fully discharged. During the test, the range of window stickers is reduced by approximately 30%. However, Tesla has improved the efficiency of various components in its vehicles so that efficiency doesn’t drop as much.
Most electric vehicles on the market reduce their range by 30% or more after testing. The Tesla Model S reduces power by 10% or less, making it extremely efficient.
The bottom line is that the long range of the Model S Long Range Plus is a combination of a larger battery pack and a more efficient vehicle.
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