Humans have launched themselves into the outer space. They've landed on the moon. They've built habitable space stations that orbit the Earth. The next giant leap for mankind is to reach another planet – specifically, Mars.

    The problem is that it's no easy task. The planet is 586 times further away from the Earth than the moon, and it'll take around 180 to 220 days to reach Mars, depending on where each planet is in its orbit. Such long periods in space have suggested many potential health problems, including hormonal changes, skin conditions, and muscle and bone deterioration (损耗).

    Here's where some furry friends come in. A wide range of animals have been in space, from fruit flies and spiders to cats, and dogs. Such experiments began as far back as the late 1940s in first tests to see if living things could withstand the extreme g-force (重力) of a rocket launch.

    Mice continue to play a very important part in space experiments, mainly because the animals make excellent test subjects. They're small, which makes them inexpensive and easy to care for. In addition, their size and short life span make it possible to do the equivalent of several human years of tests in a much shorter time. Finally, because mice are mammals, they share many common characteristics with humans in terms of genetics, biology and behavior.

    Astromice have hit the headlines recently, as a team of scientists led by Betty Nusgens, professor of biology at the University of Liege in Belgium, found that the mice suffered a 15 percent thinning of their skin after 91 days aboard the International Space Station (ISS).

    This experiment was part of a wider NASA mission (任务) called the Mice Drawer System (MDS). The Italian Space Agency developed the facility, which allows six mice to be housed, monitored, and automatically fed and watered aboard the ISS, among which three survived during the mission.

    The mice have participated in 20 separate experiments, to study such effects as osteoporosis (骨质疏松症), anemia (贫血) and heart health.

    Results for the 20 experiments are coming in gradually. But it's clear that mice continue to play an important role in the ongoing quest to conquer the final frontier.

    Since 1904, Ravinia Festival has been Chicago's “sound of summer”, a place where you can meet up with your friends, have a wonderful time and hear some of the greatest music in the world. We've got stars on the stage and stars in the sky, and it's all within your reach. But there's more to Ravinia than merely the world's greatest music. For as many people who walk through Ravinia's gate each summer, there are just as many ways to enjoy what we call “The Ravinia Experience”. For some, it all starts with a picnic picked up along the way, greeting your friends at your favorite spot on the lawn.

    Ravinia Dining

    Whether you want to add a bottle of wine and some cheese to your picnic on the lawn or sit down to a meal, Ravinia has a wide variety of choices and we welcome you to explore them all.

    Ravinia gifts

    There are two locations for your shopping convenience! Visit our Main Store in the Dining Pavilion. There you will find different CDs, jewelry, games and more. Or fill your more immediate needs at the shop located behind the Martin Theatre.

    How to Buy Tickets Online

    Tickets for the 2018 season begin to go on sale online on Tuesday April 25. Ravinia Festival's online ticketing makes ordering tickets for your favorite performances easier than ever before. It is available 24 hours a day at www.ravinia.org.

    Click on the date of your choice to select an event, select your seats and add it to your ticket order. Once you have selected all the events you wish to attend, simply enter your payment information and submit your order.

    By Phone

    Phone sales for the 2018 season start on Monday May 22.

    Order tickets by phone by calling 847-266-5100.

    Monday- Friday: 10: 00 am-5: 00 pm

    Saturday/Sunday: Closed

    The Ig Nobel Prizes praise research that makes you laugh and then think. The winners are allowed to make a one-minute speech with time kept by an eight-year-old! Every year, in Harvard's Sanders Theatre, people watch the winners step forward to accept their prizes. These are physically handed out by real Nobel laureates (获得者). Let's have a look at some of them.

    The Empty Bladder (膀胱) Experiment

    Four researchers at Georgia Institute of Technology found that animals above 3 kg empty their bladders in about 21 seconds. What is the purpose of this study? The researchers hope this will help solve urinary (泌尿的) problems in animals.

    The Science of Eggs

    A team of Australian scientists managed to get hard-boiled egg whites to become raw again. While it sounds silly, this research could have a serious influence on cancer (癌症) research.

    The Fascination with Animals

    Charles Foster and Thomas Thwaites from the UK shared the 2016 Ig Nobel Prize in Biology. Thomas chose to live like a goat and wrote about his experience in "GoatMan: How I Took a Holiday from Being Human". Charles, on the other hand, spent some time in the wild, trying out the lives of many animals. He felt it gave him a chance to explore the world around us with more of our senses.

    Colors & Horseflies

    A team from Hungary, Spain, Sweden and Switzerland won the 2016 Ig Nobel Prize in Physics. They studied why horseflies have less interest in white-haired horses. The team used handmade horses covered in glue. They found that dark colors attracted more flies because of how sunlight reflected (反射) off them. To the food searchers, it was a sign of food. This finding could explain the white coats of zebras too.

    We have recently heard some interesting ways that 5G wireless technology might change our lives in the future. One project in Britain is testing this superfast technology, but not on humans. Instead, the experiment involves an unlikely group of Internet users—cows. The system connects the animals to 5G in an effort to automate the milking process.

    The project was developed by American technology company Cisco Systems. It is part of a Cisco-led program called 5G Rural First. Cisco says the program seeks to explore the future of 5G connectivity in rural communities around the world. Rural areas are expected to be the last to receive 5G service.

    Testing areas were set up on farms in three rural areas of England. The cows are equipped with 5G-connected devices that link up to a robotic milking system. The system uses sensors and machine learning to fully automate the process, System designers say the technology takes over after a cow feels ready to be milked and walks toward an automatic gate. The device is designed to recognize each individual cow. It then positions equipment to the right body position for milking. During the process, machines release food for the cow as a reward.

    One of the test areas is in the town of Shepton Mallet, in southwest England. There about 50 of the farm's 180 cows are fitted with 5G smart collars and health-observing ear sensors. Project officials say the devices do not harm the cows and the sensors permit farmers to immediately identify any problem or health concerns.

    Other technology tools powering the 5G smart farms include automated brushes that work automatically when the cow rubs up against them. Sensors also control the amount of light to the cows' living areas depending on the weather. And, an automatic feeding system makes sure the animals always get enough to eat.

    Nick Chrissos works on the project for Cisco. He said the system could connect every cow and every other animal on the whole farm. "That's what 5G can do for farming—really release the power that we have within this farm, everywhere around the United Kingdom, and everywhere around the world."

Perhaps you know them as "taters", "spuds", or "Kennebees", or as "chips", "Idahoes", or even "shoestrings". No matter, a potato by any other name is still a potato — the world's most widely grown vegetable. As a matter of fact, if you are an average potato eater, you will put away at least 100 pounds of them each year. 

That's only a tiny amount grown every year, however. Worldwide, the annual potato harvest is over 6 billion bags. Each bag contains 100 pounds of potatoes, some of them as large as four pounds each. Here in the United States, farmers fill about 400 million bags a year. That may seem like a lot of "taters", but it leaves the United States a distant third among world potato growers. Polish farmers dig up just over 800 million bags a year, while the Russians lead the world with nearly 1.5 billion bags. 

People eat potatoes in many ways-baked, mashed, and roasted, to name just three. However, in the United States most potatoes are devoured in the form of French fries. One fast-food chain alone sells more than $1 billion worth of fries each year. No wonder, then, that the company pays particular attention to the way its fries are prepared. 

Before any fry makes it to the people who eat at these popular restaurants, it must pass many separate tests. Fail any one of these tests and the potato is rejected. For example, only Russet Burbank potatoes are used. These Idaho potatoes have less water content than other kinds, which can have as much as 80 percent water. Once cut into "shoestrings" shapes, the potatoes are partly fried in a secret blend of oils, sprayed with liquid sugar to brown them, steam dried at high heat, then flash frozen for shipment to individual restaurants. 

So, now that you realize the enormous size and value of the potato crop, you can understand why most people agree that this part of the food industry is no "small potatoes". 

Some people often wonder whether they are fighting a battle with their genes to maintain a healthy weight. In fact, researchers have provided plenty of evidence that people are born with tendencies to be lighter or heavier. For example, studies of identical twins have revealed great similarity in their overall weight. Part of this similarity may be explained by the finding that some people are born to burn a lot of calories just through ordinary day-to-day activities while others are not. Those who are not are more at risk for weight gain.

Researchers have discovered some of the actual genetic mechanisms (机制) that may make some individuals more likely to be obese. For example, a gene has been found that appears to control signals to the brain that enough fat has been stored in the body in the course of a meal—so the individual should stop eating. The gene influences the production of leptin (瘦蛋白), which keeps appetite under control. If leptin doesn't work well, it is likely that individuals will continue to eat. Thus the gene that controls leptin appears to have a critical influence on the potential for obesity.

The confirmation that leptin plays a role in weight control has encouraged researchers to identify and understand other weight-related genes. Recent attention has focused on a gene called GAD2. GAD2 helps control the amount of the neurotransmitter (神经递质) GABA. In general, when more GABA is available, appetite is increased. For that reason, people who have a form of GAD2 that allows more GABA to be available may be at risk for overeating. You can see that GAD2 is not directly an obesity gene. Rather it has an indirect influence on obesity through its direct influence on GABA.

Genetic research holds out the promise of innovative solutions to obesity. Researchers hope that an understanding of the link between genus and weight control will enable them to provide new drug treatments. Nonetheless, even the most optimistic researchers provide a warning: "Innovative drugs will be effective only when they are used along with lifestyle changes."