E Amazings – Money management
  • Home
  • Automotive
  • Business
  • CBD
  • Crypto
  • Education
  • Entertainment
  • Fashion
  • Finance
  • Health
  • Home Improvement
  • Law \ Legal
  • News
  • Shopping
  • Sports
  • Technology
  • Travel
  • Need Help?

Subscribe to Updates

Get the latest creative news from FooBar about art, design and business.

What's Hot

What Closing Costs Do Home Buyers Have?

February 25, 2023

What Is Realtek HD Audio Manager

February 2, 2023

A Basic Guide To Cell Tower Leasing

February 2, 2023
Facebook Twitter Instagram
E Amazings – Money management
  • Home
  • Automotive
  • Business
  • CBD
  • Crypto
  • Education
  • Entertainment
  • Fashion
  • Finance
  • Health
  • Home Improvement
  • Law \ Legal
  • News
  • Shopping
  • Sports
  • Technology
  • Travel
  • Need Help?
Facebook Twitter Instagram
E Amazings – Money management
You are at:Home»Technology»A Self-Spinning Tennis Ball To Surprise Your Opponent
Technology

A Self-Spinning Tennis Ball To Surprise Your Opponent

By August 25, 2022No Comments3 Mins Read
Facebook Twitter Pinterest LinkedIn Tumblr Email
Share
Facebook Twitter Pinterest WhatsApp Email

[ad_1]

In many ball sports like golf, football and tennis, controlling the ball’s spin is an important skill. Expert players can make golf balls curve around obstacles, launch footballs towards goal posts from impossible angles, or confuse their opponents by making a tennis ball bounce in a completely unexpected direction.

[Luis Marx], by his own admission, is not an expert tennis player at all, so when he found himself humiliated on the court by his roommate he set about finding a different way to win. In other words, to cheat. The basic idea was to make a tennis ball that would start spinning at the push of a button, rather than by skillful wielding of a racket: a spinning ball that flies through the air will follow a curved trajectory, so if you can make a ball spin at will, you can change its direction in mid-air.

Making a ball spin by itself is not as hard as it may sound. All you need is an electric motor that’s small enough to fit inside, along with a power source and some way to turn it on. When the motor inside the ball starts to spin, Newton’s third law ensures that the outside will spin in the opposite direction. [Luis] found a suitable DC motor and mounted it on a small custom-designed PCB along with an ESP8266 controller and powered it with a tiny lithium battery. A pushbutton mounted on his tennis racket operates the wireless interface to turn the motor on and off.

Although getting this setup to work wasn’t as easy as [Luis] had hoped, turning it into a ball that’s good enough to play tennis with was not straightforward either. [Luis] decided to 3D-print the outer shell using flexible filament in order to create something that would have the same amount of bounce as an ordinary rubber tennis ball. It took several rounds of trial and error with various types of filament to end up with something that worked, but the final result, as you can see in the video (in German, embedded below), was quite impressive.

Tests on the tennis court showed that [Luis] could now easily beat his roommate, although this was mostly due to the erratic bouncing caused by the ball’s spin rather than any aerodynamic effects. Still, the magic tennis ball achieved its objective and even survived several games without breaking. If you’re looking for a more brute-force approach to cheating at tennis, this 180 mph tennis ball trebuchet might come in handy.

[ad_2]

Source link

Related Posts

What Is Realtek HD Audio Manager

By Corbin BowenFebruary 2, 2023

A Basic Guide To Cell Tower Leasing

By Corbin BowenFebruary 2, 2023

The Flight Of The Dremel

By January 5, 2023

A White-Light Laser, On The Cheap

By January 5, 2023
Add A Comment

Comments are closed.

Our Picks

What Closing Costs Do Home Buyers Have?

By Corbin BowenFebruary 25, 2023

What Is Realtek HD Audio Manager

By Corbin BowenFebruary 2, 2023

A Basic Guide To Cell Tower Leasing

By Corbin BowenFebruary 2, 2023
Recent Posts
  • What Closing Costs Do Home Buyers Have? February 25, 2023
  • What Is Realtek HD Audio Manager February 2, 2023
  • A Basic Guide To Cell Tower Leasing February 2, 2023
  • Air Duct Repair 101: Everything You Need To Know February 2, 2023
  • Advantage LIC? How Budget Insurance Amendment Bill may benefit the PSU insurance giant January 5, 2023
  • The Flight Of The Dremel January 5, 2023
  • LIC offering multiple benefits on premium payment with co-branded credit cards with Axis Bank: Check features, offer January 5, 2023
Archives
  • February 2023
  • January 2023
  • December 2022
  • November 2022
  • October 2022
  • September 2022
  • August 2022
  • July 2022
  • June 2022
  • September 2021
  • December 2020
  • November 2020
  • October 2020
  • September 2020
  • August 2020
  • July 2020
  • June 2020
  • May 2020
  • April 2020
  • March 2020
  • February 2020
  • January 2020
  • June 2018
  • May 2018
  • April 2018
  • March 2018
  • February 2018
  • January 2018
Facebook Twitter Instagram Pinterest TikTok
© 2022 E Amazings - All Rights Reserved.

Type above and press Enter to search. Press Esc to cancel.