1. PayPal has been testing its physical payments service at Home Depot stores since early 2012.

2. Digital music sales surpassed physical sales of CDs in 2011.

3. Also, sales of physical and digital titles soared 55% in 2013.

4. Testing that 18-wheeler in a physical wind tunnel could cost as much $100,000.

5. You really need to have access to one or more physical devices.

6. At some point there does have to be a physical attraction.

7. One day or another they will find themselves before this problem of physical appearance.

8. All of the physical evidence shows is forces applied from the front.

9. Such users also typically want a device that can work well with a physical keyboard.

10. The Samsung has a physical button to turn it on and the LG doesn't.

11. It took a physical act to get him back to reality.

12. The person is in the physical presence of their potential victim.

13. The main idea is that you can go back and forth between the physical and digital worlds.

14. We now have in place the physical infrastructure to dramatically expand our cloud customer base.

15. Most people know that your physical movements can be tracked through the GPS on your phone.