Can a window start a fire? The answer is yes.

Some modern windows use special glass. This glass can reflect sunlight like a mirror. It sends heat away from your home. This is good for saving energy.

But there is a problem. Sometimes the glass is slightly curved. A curved window focuses sunlight into one strong point. This point gets very hot. It can burn plants, wood, or other materials nearby. This is very dangerous.

Fires from windows happen in many countries. People lose gardens, cars, and sometimes homes. Experts say the problem is growing. More homes now have this special glass.

What can you do? Look at your windows. Are they curved? Do they send a bright light onto something nearby? If yes, talk to a professional. You can add a film to the glass. This stops the glass from focusing light.

Check your windows today. It is a simple step. It can keep your home safe.

A university is a place for studying. Students read books. They go to classes. But at some US universities, something surprising is also there: weapons.

Campus police in California can keep powerful weapons. One of these is a very loud sound device. It makes an extremely loud noise. The noise can hurt your ears. It makes people feel frightened.

One university used its sound device 71 times in one year. Most of the time, officers used it at student protests. Students went outside to say they did not like something. Police used the loud device to stop them.

Many people think this is wrong. Universities are places for free ideas. Students have the right to protest. A very loud weapon is not the right tool for a university.

There is some good news. Some universities now want to remove their most dangerous weapons. They want campus police to use safer methods. This is a positive step.

More universities need to think about this. Students need to feel safe on campus. Powerful weapons do not help with that.

A popular pasta dish is hurting the ocean near Naples, Italy. The dish uses sea urchins. Sea urchins are small, round animals. They live under the sea. They have sharp spines on their body.

Sea urchins are very important for the ocean. They eat old plants on the rocks. This keeps the ocean healthy. Without them, the ocean gets sick.

But sea urchins are also very popular in restaurants. People love to eat them with pasta. The demand is very high. So some people take sea urchins at night. They do this without permission. This is illegal.

These people take too many sea urchins. The number of sea urchins in the ocean near Naples is now very low. Scientists want to protect them. The government has rules. But some people do not follow the rules.

What can you do? You can choose not to order this dish. This is a small action. But many small actions together make a big difference. Think about the ocean the next time you look at a menu.