Text this

Number:

Provider:

CAPTCHA:

  _  _     ______    _  __     ___      _  __  
 | \| ||  /_   _//  | |/ //   / _ \\   | |/ // 
 |  ' ||   -| ||-   | ' //   | / \ ||  | ' //  
 | .  ||   _| ||_   | . \\   | \_/ ||  | . \\  
 |_|\_||  /_____//  |_|\_\\   \___//   |_|\_\\ 
 `-` -`   `-----`   `-` --`   `---`    `-` --`

Please enter what you see:

Text this: Dynamic response of tower crane induced by the pendulum motion of the payload