Part of the Software applications glossary: MDI (Multiple Document Interface) is a Microsoft Windows programming interface for creating an application that enables users to work with multiple documents at the same time. Each document is in a separate space with its own controls for scrolling.he user can see and work with different documents such as a spreadsheet, a text document, or a drawing space by simply moving the cursor from one space to another. An MDI application is something like the Windows desktop interface since both include multiple viewing spaces.
Tai Chi and Calories. To lose 1 pound of fat, you must burn 3,500 calories. A 30-minute tai chi session will burn roughly 150 calories for a 155-pound person -- about the same as walking at a moderate pace. Although you don't burn as many calories with tai chi as with more vigorous activities such as jogging, the numbers add up over time, potentially leading to weight loss over the weeks.
When you're active, your body uses more energy (calories). And when you burn more calories than you consume, you lose weight. Because 3,500 calories equals about 1 pound (0.45 kilogram) of fat, you need to burn 3,500 calories more than you take in to lose 1 pound. So if you cut 500 calories from your diet each day, you'd lose about 1 pound a week (500 calories x 7 days = 3,500 calories). There are other factors that can influence this equation. Because of changes that occur in the body over time, calories may need to be decreased further to continue weight loss.