investment effectiveness

Profiting From Chaos: Using Chaos Theory For Market Timing, Stock Selection, And Option Valuation; Author: Tonis Vaga;

《混乱中赢利：运用混沌理论来计算股市机会，选择股票和》；

HandEnergy, the brainchild of 19-year-old inventor Michael Vaga, allows you to charge your phone simply by rotating your hand, which activates the device's gyroscope to produce energy that can then either be stored or used to immediately charge a mobile.

HandEnergy是19岁的发明家迈克尔·瓦加的创意发明，你可以只通过甩甩手就能充电，这样可以激活设备的磁转子发电机来产生能量，然后可以存储电量或立即为移动设备充电。

The invention took over a year to develop, and Mr Vaga has said it is ideal for people who spend a long time away from a power source.

这一发明花了一年多的时间开发，瓦加表示，对于长时间找不到电源的人来说，这是一项理想发明。