Circulation, downwash, and three-dimensional wing theory. Airfoil data, and lift and drag of aircraft components. Power required and power available. Introduction to aircraft performance calculations.

A streamlined body looks like a fish, or an airfoil at small angles of attack, whereas a bluff body looks like a brick, a cylinder, or an airfoil at large angles of attack. For streamlined bodies, ...

Atmosphere models, air-speed measurement, and aerodynamic heating. Circulation, downwash, and three-dimensional wing theory. Airfoil data, and lift and drag of aircraft components. Compressibility ...

Here we explore what the theory of general relativity is and how it affects space-time. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works.

[Frost’s] saucer was airflow neutral, but with some carefully-placed jet engines, the craft could create a virtual airfoil. In theory, the craft could take off and land vertically, but also be ...

The exact airfoil shape of a wing has a massive effect on the performance and efficiency of an aircraft and will be selected based on the intended flight envelope. If you’re moving beyond foam ...

Hydrofoils have become the go-to technology for boats, making sailboats faster, powerboats infinitely more efficient, and they’re even starting to show up on superyachts. Airfoils come in many ...

This feeling has been dubbed “October Theory” — TikTok loves a “theory,” after all — and it’s a term that now has over 36 million posts on the app. As it turns out, it’s common to ...

Nearly everyone fears death. How that fear influences human thinking and behavior is the focus of terror management theory (TMT) research. According to TMT, death ...

Social comparison theory is the idea that individuals determine their own social and personal worth based on how they stack up against others. The theory was developed in 1954 by psychologist Leon ...

Ammar Mas-Oo-Di / EyeEm / Getty Images Monetary theory is based on the idea that a change in money supply is a key driver of economic activity. It argues that central banks, which control the ...

Her expertise is in personal finance and investing, and real estate. Expectations theory attempts to predict what short-term interest rates will be in the future based on current long-term ...