Theme parks are magical places where adults can act like children who have the time of their lives. Here are the top four theme parks across the world.

Ferrari World — Yas Island, Abu Dhabi

Abu Dhabi in the Middle East is home to the world's largest indoor theme park. The main attraction is the Formula Rossa — officially the fastest roller coaster in the world. The ride goes from 0 to 239 kilometres per hour in less than five seconds. The force is so strong that those brave enough to go on it have to wear safety glasses.

Tickets : £ 40 per adult and half price for children under 1.2 metres tall.

Alton Towers — Staffordshire, England

Alton Towers is the most visited theme park in the UK. The park offers rides such as the popular 800-metre-long roller coaster. Or if you're interested in experiencing the sense of flying, head for the famous ride Air, where you'll need to avoid objects and trees as you fly. The park also has many other attractions, including live shows.

Tickets: £ 43 per adult and £ 21 per child. Children under the age of 3 get in for free.

Disneyland Paris — Paris, France

Disneyland Paris creates a fantasy world that both children and adults can enjoy. Disneyland Park gives girls the chance to meet their favourite Disney Princesses and to explore Sleeping Beauty's castle. Exciting roller coasters will keep the whole family entertained for hours on end.

Tickets: £ 34 per adult and £ 27 per child. Children under the age of 3 get in for free.

Oakwood Theme Park — Pembrokeshire, Wales

If you are eager to experience fast turns and drops, then this is the park for you. Be brave and go on the Megafobia roller coaster, a wooden coaster making you scream.

Tickets : £ 48 for adults, £ 22 per child. Children under 3 years get in for free.

When the COVID-19 hit and supermarket shelves were empty, Chris Hall and Stefanny Lowey decided they no longer wanted to rely on others for food. The couple, who live on Pender Island in British Columbia, Canada, decided to start a year-long challenge where they wouldn’t buy a single thing to eat. Instead, they would grow, raise or catch everything—right down to sugar, salt and flour. Now, five months in, they say the challenge has changed their lives.

Chris, 38, said, “It has always been something that we have wanted to do. We have had a garden and grown vegetables for a long time already. When the COVID-19 hit, it gave us that extra push that we needed to do it. We were both out of work when we started, and with the reality check of grocery stores running out of items, it gave us even more motivation to see if we could look after ourselves.”

The pair spent the months before building a house for chickens, ducks and turkey as well as studying as much as possible to figure out where they would get all the things they needed. Chris adds, “We had to learn so many new things like how to grow mushrooms, process our Stevia plants, and harvest salt from the ocean. We spent a lot of time reading and studying online to figure out all the things we were going to need to do.”

Now after two months, they both feel it’s been going well but Chris admits the first few weeks were difficult. “The first three weeks were very challenging as our bodies adjusted to cutting out coffee, wine and sugar all on the same day,” he says. “After three weeks, our energy levels balanced out and our wishes reduced and now we feel great.” Now February has ended. As they come through winter, they feel positive about continuing with this way of living, with their challenge officially ending in November.

"Baby signing" classes established to improve language skills actually make little difference to children's development, according to new research. Scholars claimed (声称) there was no evidence that the lessons, in which babies are taught simple gestures to communicate their everyday needs, enable children to talk quicker than others.

In a three-year study, it was claimed that the method could make mothers more responsive to their children's behaviors but failed to actually increase babies' vocabulary. An active home environment in which parents regularly talk to their children was much more effective, researchers warned. The conclusions will cast doubt on the movement born in the United States, which has proved hugely popular among middle class parents.

Baby signing is now a multi-million pound industry, with thousands of mothers and fathers paying for classes, books and DVDs. Young children are taught simple gestures for words and phrases to communicate their everyday needs, such as "milk", "more" "all gone", "food" and "tired". It is claimed that the technique brings great benefits, including improving the relationship between mother and child, helping language development and even increasing a child's intelligence.

Bu research from Hertfordshire University has found no evidence that using baby signing helps to improve their language development. The scholars added, "Baby signing has become big business and mothers, particularly first-time mums or less confident parents, feel the pressure to do it. Some even think "if I don't do it and everyone else is, I must be a bad mother."

But baby signing experts contradicted the findings. Wendy Moat, 45, who has been running baby signing classes for three years, said that the classes encouraged speech development, and may help develop a higher IQ. She said, "So many mums say that their children talk so well because they did baby signing when they were babies. Parents wouldn't say it if they didn't believe it."

3D printing is becoming more and more popular. We are now able to create things we need very quickly and easily using 3D printers. But can you imagine printing food?

Some scientists are trying to revolutionize the dining experience by doing this. They hope that having a 3D printer in the kitchen will be as common as the microwave oven or blender.

Scientists say that it'll be quite easy: you simply have to select a recipe and put the raw food “inks” into the printer. You can also modify the instructions to make the food exactly how you want it. This means that it would be very quick and easy to create tasty and nutritious meals. Using 3D printers to create your meals would also be saving the environment. There would be less need for traditional growing, transporting and packaging processes as food production would be a lot more efficient. For example, alternative ingredients（原料）such as proteins from algae, beetroot leaves and insects could be converted into tasty products.

Printing food could also help people who suffer from dysphasia (a swallowing disorder). They could program the printer to print softer versions of their favorite foods so that they would not have trouble in swallowing them.

However, some people think that a future of 3D food printing would be a disaster. It could take away many jobs, including those from growing, transporting and packaging food. Imagine a world where there was no need for farming or growing crops and the same tastes could be printed from a raw “food ink”. Likewise, traditional cafes and restaurants might lose business. Also, there are concerns about the nutritional value of printed food: is it really possible to be get the nutrients we need from food-based inks and gels（凝胶）？

What's more, cooking and eating together with family and friends has long been a traditional and enjoyable activity. It is hard to imagine a world where the pleasure of cooking is dead and meals can be created at the touch of a button.