【推荐1】Automation (自动化) was a hot topic. Nearly everyone agreed that people would be working less once computers and other kinds of automatic machinery became widespread. For optimists, this was a promise of liberation: At last humanity would be freed from constant toil, and we could all devote our days to more refined pursuits. But others saw a threat: Millions of people would be thrown out of work, and desperate masses would roam the streets. Looking back from 50 years hence, the controversy over automation seems a quaint and curious episode. The dispute was never resolved.

A. J. Hayes, a leader (and no relation to me), wrote in 1964: Automation is not just a new kind of mechanization but a revolutionary force capable of overturning our social order. Whereas mechanization made workers more efficient — and thus more valuable — automation threatens to make them superfluous (过剩的) — and thus without value. The opinions I have cited here represent extreme positions, and there were also many milder views. But I think it’s fair to say that most early students of automation, including both critics and enthusiasts, believed the new technology would lead us into a world where people worked much less.

As for economic consequences, worries about unemployment have certainly not gone away — not with job losses in the current recession approaching 2 million workers in our country alone. But recent job losses are commonly attributed to causes other than automation, such as competition from overseas or a roller-coaster financial system. In any case, the vision of a world where machines do all the work and people stand idly by has simply not come to pass.

The spread of automation outside of the factory has altered its social and economic impact in some curious ways. In many cases, the net effect of automation is not that machines are doing work that people used to do. Instead we’ve dispensed with the people who used to be paid to run the machines, and we’ve learned to run them ourselves. These trends contradict almost all the expectations of early writers on automation, both optimists and pessimists. So far, automation has neither liberated us from the need to work nor deprived (剥夺) us of the opportunity to work. Instead, we’re working more than ever.

What about trades closer to my own vital interests? Will science be automated? Technology already has a central role in many areas of research; for example, genome sequences could not be read by traditional lab-bench methods. Replacing the scientist will presumably be a little harder than replacing the lab technician, but when a machine exhibits enough curiosity and tenacity, I think we’ll just have to welcome it as a companion in zealous research. And if the scientist is elbowed aside by an automaton, then surely the science writer can’t hold out either. I’m ready for my 15-hour workweek.

【推荐2】Mariana Bechtel isn’t exactly someone who avoids stress. Throughout her, she has pursued high-pressure management jobs: “I’m hard core,” says the 44-yearold wife and mother of two. “I wanted to be on top at work, and I wanted to be a great mom” –one who could attend baseball games, drive and help with homework even after an hour-long commute （通勤）on workdays, more often than not, with a5 a.m. marathon-training run.

However, after months of losing sleep, dropping weight and feeling pushed to lose her mind, Mariana Bechtel decided she had to address her stress-and turn it to her advantage. The new job she recently switched to still has its share of pressure, but with more support from her boss and more flexibility in her schedule, she says she feels great.

Contrary to popular belief, stress doesn’t have to be a soul-sucking, health-damaging force. But few people know how to transform their stress into the positive kind that helps them reach their goals.

A recent research confirms that gaining control over job demands, doing work with meaning and purpose and enjoying support and encouragement from co-workers are all linked to beneficial stress. Simply changing attitudes and expectations about stress-through coaching, training or peer-support groups-can also develop the constructive kind of stress.

“Stress is paradoxical,” says Alia Crum, a research scholar. “On one hand, it can be the thing that hurts us most. On the other, it’s fundamental to psychological and physical growth. The attitude that we view and approach stress will shift the outcome.”

【推荐3】Picture this: A goldfish swimming in a square tank on wheels as it rolls from one side of a room to the other.

It’s not a scene from a children’s book or a futuristic movie. It’s an animal behavior experiment at Ben-Gurion University of the Negev, where researchers have successfully trained several goldfish to operate a robotic vehicle in an effort to explore whether their species is able to navigate (导航) on land.

It turns out that they just might be, according to one of the researchers. “Our experiment shows that goldfish have the ability to learn a complex task in an environment completely unlike the one they evolved in.”

To test the fish, researchers created the “Fish Operated Vehicle” (FOV), a special robotic car with a fish tank, which tracked where the goldfish was and what direction it was swimming, and then automatically move in the same direction.

Researchers tasked six goldfish with “driving” the vehicle toward a target — a colorful mark on the wall visible through the four clear sides of the tank. The fish were rewarded with a feed when the vehicle touched the target. Researchers conducted multiple 30-minute sessions to see how many times each fish reached the target, how long each drive took and the distance they traveled each time.

After a few days of training, the fish were able to navigate to the target even if they hit a wall along the way or started their drive from a new location. Notably, they weren’t fooled by fake targets of other colors, either. Initially, it took the fish about half an hour to drive to the target, but by the end of the experiment, they were able to complete the same challenge in less than a minute.

“The findings suggest that the way space is represented in the fish brain and the methods it uses may be as successful in a land environment as they are in an underwater one,” the study concludes. But still, scientists say more research is needed to extend these findings to more complex scenery, like open land environments.

【推荐3】In the midst of an already record-breaking heat wave, Phoenix, Arizona, set a particularly eye-popping record: the temperature only dropped to 97 degrees Fahrenheit overnight between Tuesday and Wednesday, setting an all-time record high for a nighttime low. When temperatures stay high overnight, they place a particularly heavy burden on the body, raising the risk of heat illness and death.

The U.S. —and the world—has seen a spate of extreme heat so far this year, including the planet’s hottest-ever June and hottest week on record during the first week of July. Rising global temperatures from burning fossil fuels are the main driver of more frequent and more intense heat waves. And an El Niño event is also boosting global temperatures this year.

A heat dome has been in place for weeks over the U.S. Southwest and Texas, and it has fueled many heat records. Phoenix has now seen 20 days in a row with a daytime high of 110 degrees F or higher, a record that is likely to continue for several more days. A heat dome is an area of high pressure that parks over a region. High-pressure ridges, as they are also called, feature sinking air, which compresses and heats up. These ridges’ typical clear skies also allow the sun’s rays to beat down on the ground, further raising temperatures.

Prolonged heat extremes pose a major public health threat because heat is the number-one weather-related killer in the U.S.; it causes more human deaths than hurricanes, tornadoes and floods combined. Heat can cause dehydration, which leads the blood to thicken and makes the heart pump harder. That organ and others can be damaged by too much exposure to heat.

The soaring, triple-digit high daily temperatures grab the headlines, and they definitely are a concern—but when temperatures only drop into the 80s and 90s at night, the body doesn’t get a chance to cool down. This is particularly a concern for those who lack air-conditioning, including unhoused populations. And heat is especially a health risk for the very young, the elderly and those with preexisting health conditions such as asthma and heart disease.