![]() ![]() (This is why tempered glass is used for side and rear windows in cars and glass shower doors.) To understand more on how and why this seemingly random breakage occurs, you can check out our blog post on the subject. That being said, tempered glass is often referred to as “safety glass” because when it does break, it crumbles into cube-shaped pieces that are easy to sweep up, as opposed to long, thin shards that can more easily cut you. Tempered glass does have one downside, however: On rare occasions, it can shatter unexpectedly (this may seem spontaneous, but it’s usually a result of thermal shock or repeated stress on the glass). It can survive being dropped on the floor, and it’s able to withstand dramatic temperature changes without cracking. Tempered glass is ideal for cooking and storing food because it’s very durable. Most glass food-storage containers, including the Pyrex and Glasslock sets we recommend, are made of tempered glass, a type of heat-treated soda-lime glass. The bouncing ball is the classic animation exercise, demonstrating not only squash and stretch, but also the effect of gravity and inertia on the spacing and timing of the animation.Containers are made from different types of glass, which will affect their durability, price, and how they’ll break if you drop them. ![]() In this exercise, you will experiment with basic squash and stretch and observe how the properties of objects affect how they move. The ball moves fastest just before and after it hits the ground, and decelerates as it reaches the top of its arc. The ball stretches as it gains speed, and then squashes on impact with the ground. In reality, a bowling ball does not squash, but in animation, you need to add a little bit of squash and stretch in order to give a better illusion of movement and weight. You should complete the exercise in a new project.
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