Sandro Sigey
More ideas from Sandro
comparison of planet & star sizes will make you feel very very very small! Earth is just a speck in the Universe!

The scale of planets and stars - Puts things in perspective - funny how the smaller of those stars is more likely to live the longest. Really puts thing in perspective

abdominal exercises - Google Search

Printable Workout to Customize and Print: Ultimate At-Home No Equipment Printable Workout Routine for Men and Women 2468 363 2 Helen Hanson Stitt Fitness InStyle-Decor Hollywood love it fitness workouts full body

7 Core Exercises Every Tennis Player Should Do | ACTIVE

Improving your core strength can have a huge impact on your tennis game. These exercises will help you stay fierce on the court.

Understanding the Spin of a Tennis Ball

Become a more consistent tennis player by understanding spin. Learn about topspin, underspin, and no spin, and how each affects the trajectory of the ball.

Ski