ให้ 24 เข้า 3 งวดแล้ว ไก่กูดหม้อนึ่ง จิกสลากบอกโชค 3 ตัว

Have you ever seen a group of trucks running up the road very close together? They do this because it saves efficiency and the trucks in the front block the wind for those in the back. The more trucks involved the more the relative wind (headwind) is blocked and everyone can go faster under less energy, meaning they save a ton of fuel.
from: http://ezinearticles.com/?Can-Airplanes-in-Formation-Benefit-From-Slipstream-Like-in-the-Tour-De-France?&id=2599339

Can Airplanes in Formation Benefit From Slipstream Like in the Tour De France? 7594243599092533555-blid-8646995875050598100

ให้ 24 เข้า 3 งวดแล้ว ไก่กูดหม้อนึ่ง จิกสลากบอกโชค 3 ตัว

Have you ever seen a group of trucks running up the road very close together? They do this because it saves efficiency and the trucks in the front block the wind for those in the back. The more trucks involved the more the relative wind (headwind) is blocked and everyone can go faster under less energy, meaning they save a ton of fuel.
from: http://ezinearticles.com/?Can-Airplanes-in-Formation-Benefit-From-Slipstream-Like-in-the-Tour-De-France?&id=2599339