In this video, I demonstrate a fun science trick using a simple arrow, a glass, and water. Watch how the arrow magically flips direction when seen through the glass of water—a perfect example of ...
The blue dot and direction arrow in Google Maps represent where you are and what direction your device is pointing in. A minor update to the Android app today changes the arrow to a shining blue beam.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results
Feedback