A Japanese company, Next Technology, has created a robot dog that can tell you how bad your feet smell, by using a powerful sensor fixed in its nose. If you feet don't have a bad smell. Hana-chan will happily wag its tail, if it's exposed to feet that are mildly smelly, it'll start to bark, and if they give off an extremely bad smell, it'll just fall over like the smell caused it to faint(昏倒).

    Foot odor (脚臭) is a big deal in Japan, where it's a custom for people to take off their shoes whenever they enter someone's home. In fact, exposing others to bodily odors can be considered annoyance in Japan. Some of the most brilliant minds in the country's tech industry have been trying to solve this problem. Last year, Thanko started selling axmpit (腋窝) fans designed to keep people's armpits nice and dry Now, we have Hana-chan.

    The robot dog has a special sensor for a nose, and can tell you if your feet smell just by sniffing them for a few seconds. According to some media reports, Hana-chan can help solve the problem of extremely smelly feet by spraying them with air freshener, but it's unclear whether this feature comes built-in, or if you'll have to pay extra for it.

    According to researchers at NextTechnology, the idea for Hana-chan was inspired by a person who desperately wanted some way to know if his feet smelled. "He told us his daughter had said his feet were smelly, " NextTechnology's Kimika Tsuji said. “But he didn't want to know how bad the odor was because he would feel hurt. That's why we developed this cute robot. "

    You may be able to make Hana-chan faint with your smelly feet, but it can have the same effect on budget-conscious people. NextTechnology plans to start selling the feet-smelling robot dog for ￥100, 000 ($9, 280) next May.

    You may think, salt is just a simple cooking element we shake on our food for a little extra taste. But salt is much more than that. Without salt our muscles would not move. Our nervous systems would not operate. Our hearts would not beat.

    But do not think rubbing salt in a wound will help. Doing that would be painful and not heal the wound. To rub salt in a wound is an idiom that means to purposefully make a bad situation worse.

    Early humans got the salt they needed to stay alive from the animals they killed. But advances in agriculture led to a diet low in salt. So, humans needed to find other sources. Those who lived near the ocean or other natural sources for salt were lucky. Those who did not had to trade for salt. In fact, people used salt as a method of payment in many parts of the ancient world. The word “salary” comes from the word “salt”.

    Salt also played an important part in population movement and world exploration. Explorers understood that if they could keep food fresh, they could travel longer distances. So they used salt to preserve food and explored the world.

    Salt was so important that, according to food historians, it was traded pound-for- pound for gold. Today, people still use the expressions “to be worth one's salt” or “worth one's weight in salt”. The expressions describe a person of value.

    A person might also be called “salt of the earth”. That description means he or she is dependable and trustworthy. However, when you say “I think we should take what he said with a grain of salt” you mean you accept it but maintain a degree of doubt about its truth.

    Are you looking for something to do? You might like to try one of these four experiences.

    Crocodile watching

    Do you fancy getting up close to some of the most terrifying animals on earth? Crocosaurus Cove, in Darwin (Australia) has the “Cage of Death”. It's an enclosure that's lowered into a pool. This gives you a 360 degree view of a crocodile as it's being fed. The cable broke once and the cage sank to the bottom, but they've fixed it since then.

    Edge walk

    How about walking along the edge of a building several hundred meters up in the air? If that sounds like fun, head off to the CN Tower in Toronto (Ontario, Canada). Built in 1976, the tower is 553.33 meters tall.

    The Edge walk consists of a 20-30 minute stroll along a 1.5 meter wide platform that runs around the tower's restaurant roof. During the walk, you're encouraged to lean forwards as you look over Toronto's skyline (轮廓线).

    Plastic ball rolling

    Do you fancy rolling down a hill in a plastic ball?

    Plastic ball rolling is popular all over the world, but the place to give it a go is in Rotorua (New Zealand). Brother David and Andrew Akers came up with the idea in 1994. A typical orb(球) is about 3 meters in diameter, with an inner orb size of about 2 meters. There's no brake or steering mechanism, but the inner layer of the plastic ball helps absorb the shock.

    Volcano bungee jumping

    If you're looking for the adventure of a lifetime, how about going bungee jumping off a helicopter into the crater of a live volcano? As part of the jumping, a helicopter ride takes you to the Villarreal volcano, one of the most active in Chile. Once you're at the drop zone, you leap off the helicopter and fall into the volcano. Finally, you enjoy the ride back to the airport flying at 130kph.

    Attracted by the above? If so, please contact us. Only half price from March 22 to April 25th For more information, please click here.

    As time went on, Philip's deformity was accepted like one boy's red hair and another's unreasonable obesity. But meanwhile he had grown horribly sensitive. He never ran if he could help it, because he knew it made his limp more noticeable. He stood still as much as he could, with his badly shaped foot behind the other. Because he could not join in the games which other boys played, their life remained strange to him; sometimes they seemed to think that it was his fault if he could not play football, and he was unable to make them understand. He was left a good deal to himself. He had been inclined to talkativeness, but gradually he became silent.

    The biggest boy in his dormitory, Singer, took a dislike to him, and Philip, small for his age, had to put up with a good deal of hard treatment. About half-way through the term there was a game called Nibs. It was a game for two, played on a table or a form with steel pens. Soon nothing was seen but boys playing this game, and the more skilful acquired vast stores of nibs. But in a little while Mr. Watson made up his mind that it was a form of gambling, and forbade the game. Then he ordered all the nibs in the boys' possession be handed in. Philip had been very skilful, and it was with a heavy heart that he gave up his winning; but his fingers itched to play still, and a few days later, on his way to the football field, he went into a shop and bought a pennyworth of J pens. He carried them loose in his pocket and enjoyed feeling them. Presently Singer found out that he had them. Singer had given up his nibs too, but he had kept back a very large one, called a Jumbo, which was almost unconquerable, and he could not resist the opportunity of getting Philip's Js out of him. Though Philip knew that he was at a disadvantage with his small nibs, he had an adventurous disposition and was willing to take the risk; besides, he was aware that Singer would not allow him to refuse. He had not played for a week and sat down to the game now with a thrill of excitement. He lost two of his small nibs quickly, and Singer was jubilant, but the third time by some chance the Jumbo slipped round and Philip was able to push his J across it. He crowed with triumph. At that moment Mr. Watson came in.

    "What are you doing?" he asked.

    He looked from Singer to Philip, but neither answered.

    "Don't you know that I've forbidden you to play that game?"

    Philip's heart beat fast. He knew what was coming and was dreadfully frightened, but in his fright there was a certain exultation. He had never been swished. Of course it would hurt, but it was something to boast about afterwards.

    "Come into my study."

    The headmaster turned, and they followed him side by side. Singer whispered to Philip:

    "We're in for it."

    Mr. Watson pointed to Singer.

    "Bend over," he said.

    Philip, very white, saw the boy quiver at each stroke, and after the third he heard him cry out. Three more followed.

    "That'll do. Get up."

    Singer stood up. The tears were streaming down his face. Philip stepped forward. Mr. Watson looked at him for a moment.

    "I'm not going to beat you. You're a new boy. And I can't hit a cripple. Go away, both of you, and don't be naughty again."

    When they got back into the school-room a group of boys, were waiting for them. They set upon Singer at once with eager questions. But he did not answer. He was angry because he had been hurt.

    "Don't ask me to play Nibs with you again,' he said to Philip. 'It's jolly nice for you. You don't risk anything."

    "I didn't ask you."

    "Didn't you!"

    He quickly put out his foot and tripped Philip up. Philip was always rather unsteady on his feet, and he fell heavily to the ground.

    "Cripple," said Singer.

    For the rest of the term he tormented Philip cruelly, and, though Philip tried to keep out of his way, the school was so small that it was impossible; he tried being friendly and jolly with him; he abased himself, so far as to buy him a knife; but though Singer took the knife he was not placated. Once or twice, driven beyond endurance, he hit and kicked the bigger boy, but Singer was so much stronger that Philip was helpless, and he was always forced after more or less torture to beg his pardon. It was that which rankled with Philip: he could not bear the humiliation of apologies, which were wrung from him by pain greater than he could bear. And what made it worse was that there seemed no end to his wretchedness; Singer was only eleven and would not go to the upper school till he was thirteen. Philip realized that he must live two years with a tormentor from whom there was no escape. He was only happy while he was studying and when he got into bed. And often there recurred to him then that queer feeling that his life with all its misery was nothing but a dream, and that he would awake in the morning in his own little bed in London.

    Many of us have had this experience: we lie down in a bed other than our own, perhaps at a friend's house or in a hotel room, and find it difficult or impossible to fall asleep. Is it because the bed is uncomfortable? Maybe, but perhaps there can be other reasons.

    According to a new study published in Current Biology, a significant reason is what the scientists call "first night effect". They believe that one side of the brain acts as a "night watch" to warn us about potential dangers. It forces us to stay awake on the first night in a new environments.

    For the study, 35 young volunteers were asked to sleep in a sleep lab for several days. Meanwhile, researchers watched their brain activities.

    According to the researchers, on their first night, the left brain was more active than the right brain and people had a hard time sleeping. However, left-brain activities decreased as days went by, falling even to the point of complete calm. In this process, the participants got an increasingly better sleep experience.

    The findings suggest that the different rhythms of the sides of the brain affect our sleep. When the two sides work differently, the balance between them is broken. Thus, the brain can't relax and is sensitive to anything strange in the surroundings, just as it is in the daytime.

    "At some level, the brain is continuing to analyze things, even though you are not aware of the analysis, " US professor Jerome Siegel told Smithsonian

    "If something unusual happens - if a door opens or you hear a key in a lock --you can be alert, even though the intensity of the stimulus (刺激强度) is quite low." More surprisingly, this phenomenon is similar to the way some animals sleep.

    The researchers think that it is the result of evolution (进化), and works to protect us in potentially dangerous environments.

    If you have ever had what you think is "first night effect", researchers suggest that you bring your own pillow or sleep in a room similar to your bedroom next time you sleep away from home.

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