Avoid public transportation when possible, limit nonessential travel, work from home and skip social gatherings. Don’t go to crowded restaurants or busy gyms. You can go outside, as long as you avoid being in close contact with people.

If you develop a high fever, shortness of breath or another, more serious symptom, call your doctor. (Testing for coronavirus is still inconsistent — there are not enough kits, and it’s dangerous to go into a doctor’s office and risk infecting others.) Then, check the Centers for Disease Control and Prevention website and your local health department for advice about how and where to be tested.

Wash your hands, wash your hands, wash your hands. That splash-under-water flick won’t cut it anymore.

Also, clean “high-touch” surfaces, like phones, tablets and handles. Apple recommends using 70 percent isopropyl alcohol, wiping gently. “Don’t use bleach,” the company said.

To disinfect any surface, the C.D.C. recommends wearing disposable gloves and washing hands thoroughly immediately after removing the gloves. Most household disinfectants registered by the Environmental Protection Agency will work.

There’s a lot of information flying around, and knowing what is going on will go a long way toward protecting your family.

Right now, there’s no reason for parents to worry, the experts say; coronavirus cases in children have been very rare. The flu vaccine is a must, as vaccinating children is good protection for older people. And take the same precautions you would during a normal flu season: Encourage frequent hand-washing, move away from people who appear sick and get the flu shot.

Unless you are already infected, face masks won’t helpFace masks have become a symbol of coronavirus, but stockpiling them might do more harm than good. First, they don’t do much to protect you. Most surgical masks are too loose to prevent inhalation of the virus. (Masks can help prevent the spread of a virus if you are infected. The most effective are the so-called N95 masks, which block 95 percent of very small particles.)Second, health care workers and those caring for sick people are on the front lines. Last month, the surgeon general urged the public to stop stockpiling masks, warning that it might limit the amount of resources available to doctors, nurses and emergency professionals.

Stock up on a 30-day supply of groceries, household supplies and prescriptions, just in case.That doesn’t mean you’ll need to eat only beans and ramen. Here are tips to stock a pantry with shelf-stable and tasty foods

No. The first testing in humans of an experimental vaccine began in mid-March. Such rapid development of a potential vaccine is unprecedented, but even if it is proved safe and effective, it probably will not be available for 12 to18 months.

If you’re sick and you think you’ve been exposed to the new coronavirus, the C.D.C. recommends that you call your healthcare provider and explain your symptoms and fears. They will decide if you need to be tested. Keep in mind that there’s a chance — because of a lack of testing kits or because you’re asymptomatic, for instance — you won’t be able to get tested.

That’s not a good idea. Even if you’re retired, having a balanced portfolio of stocks and bonds so that your money keeps up with inflation, or even grows, makes sense. But retirees may want to think about having enough cash set aside for a year’s worth of living expenses and big payments needed over the next five years.

The final price of any vaccine should be one that governments of poor and rich countries alike can afford so all citizens can get it free at the point of care.

Without price controls, poor countries are unlikely to be able to afford or access enough vaccines to protect their populations.

A sad truth we have learned from past global pandemics is that poor people are hit first and worst. Vaccines are most urgently needed where health systems are fragile, and where the effects of this new coronavirus could be catastrophic.

Many countries lack the resources, infrastructure, and health care personnel to mount full-scale efforts to detect the virus and prevent it from spreading, meaning it will move quickly and easily among populations. In these settings, the number of cases is likely to grow exponentially, putting stress on already burdened health care workers and facilities and making it harder to provide timely care for those who are ill. Vaccines will be an important tool for preventing such a catastrophe.

For those with resources — rich countries and rich people — a vaccine would be valuable, one of several tools we will need to prevent the most serious effects of the new coronavirus. But for those who are poor or who live in poor countries, it may be essential. Without it, they will suffer disproportionately and unnecessarily.

To let a coronavirus vaccine be monopolized by the rich will perpetuate the unjust economics of outbreaks, where the poor always pay the heaviest price. Allowing this to happen would be a moral disgrace.

A leftist activist in France was convicted and fined for insulting former French President Nicolas Sarkozy by holding a sign that said “get lost, jerk”; ironically, those were the exact words Sarkozy himself uttered when a citizen refused to shake his hand at a public fair (the European Court of Human Rights ultimately overturned the Frenchman’s conviction).

Even if “hate speech” laws were magically applied by authorities exactly as advocates would wish — whereby only the ideas one hates would be suppressed and punished while the ideas one loves would be allowed to flourish — there would still be very good reasons to oppose such laws.

As Cole wrote: “When white supremacists called a rally the following week in Boston, they mustered only a handful of supporters. They were vastly outnumbered by tens of thousands of counter-protesters who peacefully marched through the streets to condemn white supremacy, racism, and hate. Boston proved yet again that the most powerful response to speech that we hate is not suppression but more speech.”

As The Atlantic’s Conor Friedersdorf recently explained, there is a grave irony at the heart of these newfound liberal desires for “hate speech” censorship laws: The people who would implement and interpret them are those in power, people like Donald Trump, Jeff Sessions, GOP governors and legislators, and their litany of right-wing judges. It takes little imagination to see how such laws would be applied, and against whom. Indeed, the U.S. history of allowing such restrictions is that they have been used against exactly the groups that censorship advocates think they are protecting.

“There’s going to be a lot of bad news in the next three to four months,” said David Donabedian, chief investment officer of CIBC Private Wealth Management. “It will be pretty ugly. It is sure going to feel like a recession for awhile.”

If the U.S. achieves the same success as say, South Korea, the hope is that spread of the coronavirus will taper off by early summer, when illnesses such as the flu and cold also tend to weaken because of the heat and humidity.

“Some countries have proven that if you take precautionary measures such as social distancing you can get in front of this virus and contain it or at least slow it down,” said Sal Guatieri, senior economist at BMO Capital Markets.

The Fed has already cut a key interest rate on March 3 and could reduce it to basically zero by next week. The lowest rates in modern times is already encouraging a fusillade of mortgage refinancings that will put more money in family’s pockets.

Congress, for its part, is assembling what’s likely to be the first in a series of steps to cushion the blow to individuals and businesses most likely to suffer. A pending bill includes free testing, paid sick leave, emergency jobless benefits and small-business bridge loans.Economists says an overwhelming federal response is critical.

Still, even relative optimists such as Guatieri say there’s still too much uncertainty to feel confident. He and Wells Fargo’s Bullard say their firms have been changing their forecasts almost daily in the past week as the situation deteriorated. What’s made matters worse is simply not knowing the scope of the problem

“We’re not getting the insight into where we are or where we are going,” Bullard said. “So we’re all just speculating.”

US equities all but shrugged off the emergency measures — the Dow Jones Industrial Average shed 2,700 points at the open, and the S&P 500 slipped 8%, hitting a circuit breaker that halted trading for 15 minutes. When it resumed, stocks continued to slump. 

In addition to facilitating more expansionary fiscal policy, "central banks will also have to ensure that credit can continue to flow to companies and households," he said. 

While the number of job losses and company failures remains uncertain, Mr Gurría said countries would be dealing with the economic fallout "for years to come".

"Even if you don't get a worldwide recession, you're going to get either no growth or negative growth in many of the economies of the world, including some of the larger ones, and therefore you're going to get not only low growth this year, but also it's going to take longer to pick up in the in the future,"

the reason is that we don't know how much it's going to take to fix the unemployment because we don't know how many people are going to end up unemployed. We also don't know how much it's going to take to fix the hundreds of thousands of small and medium enterprises who are already suffering

Mr Gurría called on governments to rip up borrowing rules and "throw everything we got at it" to deal with the crisis.

However, he warned that bigger deficits and larger debt piles would also weigh on heavily indebted countries for years to come.

Mr Gurría said that just weeks ago, policymakers from the G20 club of rich nations believed the recovery would take a 'V' shape - with a short, sharp drop in economic activity followed swiftly by a rebound in growth."It was already then mostly wishful thinking," he said.

It's going to be more in the best of cases like a 'U' with a long trench in the bottom before it gets to the recovery period. We can avoid it looking like an 'L', if we take the right decisions today."

Markets have been roiled in recent weeks as the coronavirus spread. During the White House press conference Tuesday, the Dow Jones Industrial Average climbed as much as 1,000 points, rebounding from the worst rout since 1987

Trump's administration also spoke about other "big" plans to aid workers and the economy in the midst of the fallout. Those plans include help for industries such as airlines that have been hit hard by the coronavirus pandemic.

Some estimated that the CDC had reported more than 20% of COVID-19 cases as of March 15, but others predicted that the agency had identified just 5% of cases. Some predicted that the US could see 1 million deaths by the end of 2020, while others predicted that the death toll would be in the thousands.

The New York Times recently used CDC data to model how the how the virus could spread if no actions were taken to stop transmission in the US. The models show that between 160 million and 214 million people could be infected and as many as 200,000 to 1.7 million people could die.

Even if all patients were able to receive treatment at hospitals, however, the researchers predicted that about 1.2 million people in the US could die.

But since this particular coronavirus hasn't been seen before in humans, scientists aren't certain whether it will behave the same way. Plus, it's spreading in places with high temperatures, like Australia.

A second outbreak could also arise after people resume normal activity. The US asked citizens to avoid international travel starting March 19, but opening its borders again could fuel the virus' spread. The same goes for allowing citizens to return to work or use mass transit.

With shortages of everything from auto parts to generic medicines and production delays in things like iPhones and Diet Coke, a great deal of pain is coming from the closing of Chinese factories. That proliferating damage has central banks and financial analysts talking about a global recession in the coming months.

As a baseline, several factors work against the United States. China’s authoritarian government can quarantine entire cities or order people off the streets in a way that would be hard to imagine in America, presumably giving China an advantage in slowing the spread of the disease. In addition, a large share of American workers lack paid sick days and millions lack health care coverage, so people may be less likely to stay home or to get proper medical care. And 41 percent of China’s population lives outside urban areas, more than twice the share in the United States. Diseases generally spread faster in urban areas.

When people pull back from interacting with others because of their fear of disease, the things they stop doing will frequently affect much bigger industries in the United States.

People may stop attending American sporting events. There have even been calls for the N.C.A.A. to play its March Madness college basketball tournament without an audience. But sports is a huge business in the United States. People spend upward of 10 times as much on sporting events as they do in China.

Who wants to go to the dentist or the hospital during an outbreak if a visit isn’t necessary? Yet health spending is 17 percent of the U.S. economy — more than triple the proportion spent in China.

But over all, the United States is substantially more reliant on services than China is.

A major coronavirus epidemic in the United States might be like a big snowstorm that shuts down most economic activity and social interaction only until the snow is cleared away. But the coronavirus could be a “Snowmaggedon-style storm” that hits the whole country and lasts for months.

Regulatory review and approval. If a medication or drug is proven safe and effective in clinical trials, the U.S. Food and Drug Administration gets involved to evaluate the vaccine and administer an approval. The International Federation of Pharmaceutical Manufacturers and Associations reports that, typically, 1 in 10 experimental vaccines make it all the way through regulatory approval.

Each one of those steps can take years, and a potential vaccine can get stalled indefinitely at any one of them.

There's not a whole lot that can be done to speed up the process and still arrive at a safe and effective vaccine. Currently, most medical and public health experts say we're at least 12 to 18 months away from having a usable vaccine against COVID-19.

Because of the lengthy timeline associated with vaccine development, nearly three dozen companies and academic institutions around the world are now directing resources towards the search

While these new approaches could speed a vaccine to market, it does raise some ethical questions about safety. It's also unclear just yet whether the rush will result in an effective vaccine faster

"In the beginning of the process, the research usually involves searching through tons of sources of data to uncover opportunities that may not be so obvious.

The trial will assess "safety and antibody production, meaning that testing various doses' safety and whether these doses are producing an immune response. This phase 1 trial is not studying the effectiveness of the vaccine in preventing coronavirus infection. That will come at a later phase of the research,

But the sense of urgency surrounding the need for a safe, effective vaccine to prevent COVID-19 is driving public health officials, private pharmaceutical companies and others to work as quickly as they can to find a solution. The sooner these vaccines and other medications can be tested, the sooner we might have a viable vaccine that can halt a global pandemic that shows few signs of slowing on its own. But right now, experts say that it will take at least a year and likely longer before such a vaccine is available

Graduate students will inevitably encounter failed experiments, failed teachable moments in the classroom, and time spent on research that never gets funded or never comes to fruition. Wilson counsels patience: “A strong work ethic is absolutely essential. There must be an ability to pass long hours in study and research with pleasure even though some of the effort will inevitably lead to dead ends.”

Scientists, he claims, tend to be introverted and prone to daydreaming. They reject authority and therefore dislike being told what to do. Their attention wanders. This pigeonholing made me uncomfortable, because I think science benefits from incorporating a diversity of personalities

According to classical (i.e. Newtonian) particle theory, the results of the experiment should have corresponded to the slits, the impacts on the screen appearing in two vertical lines. Instead, the results showed that the coherent beams of light were interfering, creating a pattern of bright and dark bands on the screen. This contradicted classical particle theory, in which particles do not interfere with each other, but merely collide.

The only possible explanation for this pattern of interference was that the light beams were in fact behaving as waves

By the late 19th century, James Clerk Maxwell proposed that light was an electromagnetic wave, and devised several equations (known as Maxwell’s equations) to describe how electric and magnetic fields are generated and altered by each other and by charges and currents. By conducting measurements of different types of radiation (magnetic fields, ultraviolet and infrared radiation), he was able to calculate the speed of light in a vacuum (represented as c).

For one, it introduced the idea that major changes occur when things move close the speed of light, including the time-space frame of a moving body appearing to slow down and contract in the direction of motion when measured in the frame of the observer. After centuries of increasingly precise measurements, the speed of light was determined to be 299,792,458 m/s in 1975

According to his theory, wave function also evolves according to a differential equation (aka. the Schrödinger equation). For particles with mass, this equation has solutions; but for particles with no mass, no solution existed. Further experiments involving the Double-Slit Experiment confirmed the dual nature of photons. where measuring devices were incorporated to observe the photons as they passed through the slits.

For instance, its interaction with gravity (along with weak and strong nuclear forces) remains a mystery. Unlocking this, and thus discovering a Theory of Everything (ToE) is something astronomers and physicists look forward to. Someday, we just might have it all figured out!

"The science tells [us] when [we're] on the phone while driving, it is a high-risk activity -- very, very risky,"

Even hands-free phones appear to contribute to unsafe driving

What they found was that when children were on the cell phones, their attention to traffic -- the number of times a participant looked right or left -- went down 20 percent. The risk of getting hit by a car, or the number of close calls, went up 43 percent

Our reliance on our cell phones may actually be "training" some of us to believe it is vibrating when it is not. In the case of cell phones, people are rewarded when they pick up their calls and read their incoming text messages, which causes them to pick up their cell phones more and more frequently.

The sores and blisters that some experience from too much texting and typing have earned monikers such as "BlackBerry thumb." And while the sore thumbs may seem like a new phenomenon, medical experts say there is a rational explanation for this modern-day nuisance.

These sorts of injuries, known as repetitive strain injuries or a repetitive motion disorders, are sometimes minor. But they can also lead to serious medical problems.

According to statistics from the U.S. Centers for Disease Control and Prevention (http://www.cdc.gov/healthyyouth/noise/index.htm), about 12.5 percent of children and adolescents 6 and 19 years old and 17 percent of adults between 20 and 69 years of age have suffered permanent damage to their hearing from excessive exposure to noise. In total, this accounts for more than 30 million people.

Sounds louder than 85 decibels can damage hearing. Normal conversation is about 60 decibels, and stereo headphones out of our MP3-enabled devices often reach 100 decibels.

Climate presents more complicated issues than getting to the moon did, said John M. Logsdon, historian of the space program and founder of the Space Policy Institute at George Washington University.

“The Decision to Go to the Moon,” that laid out four conditions that made Apollo possible. In the case of the space program, the stimulus was the first human spaceflight of the Russian cosmonaut Yuri A. Gagarin, which filled Americans with dread of losing the space race. In an interview, Dr. Logsdon said it has to be “a singular act that would force action, that you couldn’t ignore.”

We’re not quite ready to sign up for a tech shabbat every weekend, given various obligations. But we are ready to do it again soon, and it served as a good reminder that putting away phones for even short stretches of time is an excellent idea.

With their high ceilings, tall windows, herringbone floors and granite stone bathrooms, these homes, like the Simonds properties, feel contemporary; the residences on the ground floors have 645-square-foot outdoor courtyards.

Einstein turned this insight into an equation that described the jittering mathematically. His Brownian motion paper is widely recognized as the first incontrovertible proof that atoms and molecules really exist—and it still serves as the basis for some stock market forecasts.

Again, Einstein didn’t invent solar cells; the first crude versions of them date back to 1839. But he did sketch out their basic principle of operation in 1905. His starting point was a simple analogy: If matter is lumpy—that is, if every substance in the universe consists of atoms and molecules—then surely light must be lumpy as well.

If you’ve been to a conference or played with a cat, chances are you’ve seen a laser pointer in action. In the nearly six decades since physicists demonstrated the first laboratory prototype of a laser in 1960, the devices have come to occupy almost every niche imaginable, from barcode readers to systems for hair removal.

So Einstein made an inspired guess: Maybe photons like to march in step, so that the presence of a bunch of them going in the same direction will increase the probability of a high-energy atom emitting another photon in that direction. He called this process stimulated emission, and when he included it in his equations, his calculations fit the observations perfectly

A laser is just a gadget for harnessing this phenomenon

Although Congress is now debating new Federal privacy legislation, I’m not optimistic that policymakers will be able to craft a law that will address these issues in a meaningful way — if they can create any law at all. There are too many stakeholders involved in the debate, each protecting their own economic self interest and competitive advantage in the marketplace

We need to engage more, make better informed decisions, use privacy settings and tools, and hold companies accountable when they misuse our data and violate our trust

As we debate privacy, we also shouldn’t forget that all of this new tech produces enormous benefits for our society - from curing diseases to easing traffic and reducing pollution

Using tech devices is addictive, and it's becoming more and more difficult to disengage with their technology.In fact, the average US adult spends more than 11 hours daily in the digital world

These days, we have a world of information at our fingertips via the internet. While this is useful, it does have some drawbacks. Entrepreneur Beth Haggerty said she finds that it "limits pure creative thought, at times, because we are developing habits to Google everything to quickly find an answer."

Technology can have a negative impact on relationships, particularly when it affects how we communicate.One of the primary issues is that misunderstandings are much more likely to occur when communicating via text or email

Another social skill that technology is helping to erode is young people's ability to read body language and nuance in face-to-face encounters.

young adults who use seven to 11 social media platforms had more than three times the risk of depression and anxiety than those who use two or fewer platforms.

Clive Wynne, a psychologist specializing in dog behavior, contends that what makes your furry friend special is not its intellect but its ability to bond with you. And not just with you. The dog’s ability to bond across species — with sheep, goats, even (horrors!) cats

Thirteen species of salmon and steelhead trout are considered threatened or endangered in the Northwest’s Columbia basin region

The fish are a keystone food source for other species, and an endangered population of orcas may be starving for lack of enough wild salmon to eat. Many scientists favor removing dams on some rivers to save the orcas and the fish. But the idea faces resistance from government agencies that manage the rivers.

A video of salmon traveling through a long tube went viral in 2019. You probably watched it. But the Whooshh cannon — its actual name — is a serious tool that conservationists are testing not only to help fish migrate, but to contain invasive carp that foul North American waterways.

A New and Improved Table could come in handy: As more superheavy elements are discovered, their behaviors could challenge the integrity of Mendeleev’s memorable chart.