Scientists have developed a new way to manipulate 3D objects using touchscreens. They found that using multi-touch gestures and an extra axis can help users control objects more precisely. This method allows for 7 different types of manipulation in 3D space. By adding depth hints, users can have better control over their interactions. A study showed that this touch-based approach is more effective than using a standard mouse for complex tasks when the interactive visualizations are well-designed.