Paragliding is an air sport purely utilizing air lift that originated from France in 1984, which is becoming more and more popular. It's important to note that, paraglider is different from the traditional parachute. It is actually a kind of aircraft. And, paragliding (hang gliding) is just one of the leisure sports that most people can enjoy, rather than those extreme sports that only a few people can touch.
To get a good mastery of vocal music, you must have certain abilities: have good music accomplishment (mainly the acquired cultivation), master the basic music knowledge and skills (sight-singing and ear-training practice, music theory, keyboard instruments...) and has a good voice condition (actually, many successful singers were not born with a good voice; on the contrary, any people who can speak can learn to sing well).
Who is Joshua Waitzkin? If you lived in the United States, probably already knew him - he became one of the top players of international chess at the age of 10; Or if you have seen a Hollywood film "Searching for Bobby Fischer" (adapted from a book with the same name written by his father), you must still remember that impressive little hero. At the age of 18, he published personal first book "Attacking Chess: Aggressive Strategies, Inside Moves from the U.S. Junior Chess Champion"; when he was 20 years old, he developed the world's largest computer chess program - Chessmaster (published by Ubisoft); and now he is a master of Tai Chi Chuan with many world champion titles.
SuperMemo is a very old software from Poland with 30 years of development history, and has always been used by many people to learn, memorize foreign language words or examination questions, etc. But properly speaking, it is an auxiliary memory software based on the scientific anti-forgetting algorithm, which can help you memorize anything with 10~50 times of improvement on efficiency.
Rosetta Stone is a powerful and professional multimedia language teaching/learning software sweeping the world 200+ countries. It's anti-grammar-teaching and anti-translation, fully based on the full application of brain science research results, there is no other languages joined.
GeoGebra is a dynamic match teaching & learning software from Austria that always wins the international education software awards. It combines the graphing calculator for functions, geometry, algebra, calculus, statistics, 3D math, etc.
This collection for Drawing of 50 Kinds of XXX (AKA: Draw 50 XXX) is a set of simple but very practical drawing learning materials for beginners. In this post, AppNee collected all books in the whole series for guys who want to learn practical drawing skills in their spare time for fun, you can download each one separately.