On Sunday, undersea explorer Tim Taylor and his team at the Lost 52 Project announced that they had located the long-lost submarine on June 5 about 1,427 feet underwater off Okinawa, Japan. Last year, researcher Yutaka Iwasaki found that the Navy had originally made an error in translating the Japanese war records that detailed where the Grayback had likely sunk. All this time, the Navy's historical records had listed an incorrect site for the submarine's location.

With the help of autonomous underwater vehicles, remotely operated vehicles and advanced imaging technology, the team discovered the Grayback about 100 miles from the area where it was originally thought to have gone down. The discovery was officially confirmed by the Navy, Robert S. Neyland, the head of the Naval History and Heritage.

On January 28, 1944, the Grayback set sail from Pearl Harbor for the East China Sea. About a month later, the submarine reported sinking two Japanese ships on February 19. Though the Grayback was scheduled to arrive in Midway on March 7, more than three weeks passed without sight of the submarine. And on March 30, 1944, the Grayback, one of the most successful submarines of World War II, was reported lost.

Gloria Hurney, whose uncle Raymond Parks died on the Grayback, said that she wasn't sure that the Grayback would ever be recovered. So when she first learned of the discovery, she felt a mixture of shock, disbelief, sadness. Eventually, though, those feelings turned into relief, comfort and peace. Hurney said in a statement to CNN. ''I believe it will allow recovery as relatives of crew members come together to share their stories. '' Neyland said in a statement, ''Each discovery of a sunken craft is an opportunity to remember and honor the service of our Sailors. ''

Recently, research on how a new virtual (虚拟的) reality (VR) experience educated primary children about the fire disasters was done. It was developed by the University of South Australia, aiming to educate children to learn how to be safer in a fire.

Focusing on children aged 10-12 years old, the new VR experience presents a situation where children are tasked to look after a friend’s dog just before a fire event begins to spread. They participate in a series of problem-solving activities to help save and protect themselves and the dog.

The findings showed that more than 80 percent of children reported that they felt more confident to calmly assess the situation and make wise decisions to protect themselves from a fire. This isl especially important considering that 91 percent of participants originally lacked any knowledge of fires, and that 67 percent had said that they were too young to make safety decisions in a fire.

The researchers believed such immersive (沉浸式的) VR experiences had real potential (潜力) to attract and educate the young. “As children born in digital times, they are interested in such technology and they can experience events realistically yet within the safe environment.” said Delene Weber, one of the researchers. “Well-designed VR can provide a chance for children to apply newly-acquired knowledge, strengthen their learnt concepts, and enable immediate reaction—all incredibly valuable learning tools.”

Meanwhile, because children have fewer life experiences, aren’t as physically strong, and are less likely to have learned much about fire safety, they’re often most at risk. Yet the ability for children to contribute to fire safety at their household should not be underestimated (低估).

“Children do not need to be passively attacked by disasters and with purpose-built virtual reality experiences such as these, we can help children understand the risks and realize they can help,” said Weber.

It’s a good idea for families to talk about what they would do to escape a fire.You’ll want to talk about escape plans and escape routes,so let’s start here.

An escape plan can help every member of a family get out of a burning house.The idea is to get outside quickly and safely.Smoke from a fire can make it hard to see where things are,so it’s important to learn and remember the different ways out of your home.If you live in an apartment building,you’ll want to know the best way to the stair or other emergency exits.If you’re in a room with the door closed when the fire breaks out,you need to take a few extra steps:

Check to see if there’s heat or smoke coming in the cracks (裂缝) around the door.

If you don’t see smoke — touch the door.If the door is hot or very warm — don’t open the door!

If you don’t see smoke and the door is not hot — then use your fingers to lightly touch the doorknob (门把手).If the doorknob is hot or very warm—don’t open the door!

If the doorknob feels cool,and you can’t see any smoke around the door,you can open the door very carefully and slowly.When you open the door,if you feel a burst of heat,or smoke pours into the room,quickly shut the door and make sure it is really closed.If there’s no smoke or heat when you open the door,go toward your escape route exit.