LIQUID CRYSTALS

Buildings waste a lot of energy keeping rooms cool when the sun beats down. Windows are usually the weak spot, letting in too much heat and light. Researchers have been trying to fix this with special windows that react to temperature and sunlight. The latest idea mixes tiny light-powered motors wit

Microplastics are a big problem. They are tiny plastic bits that are hard to see and even harder to find in nature. These little pieces come from bigger plastics that break down over time. They mix with natural stuff and change chemically. This makes them tricky to identify. Scientists have found a