Over-inflated Tires. Tire tread wear in the center of the tread pattern tells you that the inflation patterns are too high. Too much pressure can cause the contact patch to shrink and the center of the tire to carry the entire load. Under-inflated Tires.
Apple Products and Services. Most Thunderbolt hubs won't work. In fact, I'm not sure if any will work not. (I've never been in a position to try this with a MacBook Air.) I found several instances from people who thought it would, bought a Thunderbolt hub, then found out it wouldn't work. The best way to do it, is to plug one monitor into the Thunderbolt port and another one into a USB port. To do this you will need the appropriate adapters. What adapters you need depends on what kind of monitors you are hooking up, and what ports they have. According to Apple, you can hook up a total of two external monitors to a MacBook Pro. Written Sep 25, 2015.
Laptop screen quality, 15 vs 17 vs external monitor. Am used to using desktop...just switched to a 15.5 laptop as a desktop replacement but am having difficulty viewing the screen and fonts clearly. Have tried all sorts of adjustments and zooming but it hasn't been too helpful. I do lots of document work and internet research and email work.