Upper-intermediate

Albert Einstein spent nearly a decade developing his theory of general relativity, which he published in 1916. The theory asserts that gravity is matter warping space-time and so gravitational bends in space can alter the passage of time. While an appealing theory, it is yet unproven.

According to CNN, the first image of a black hole, captured in 2019, has revealed more support for Einstein's theory. The new finding has suggested his theory is now 500 times harder to disprove.

CNN reports that according to the International Air Transport Association (IATA), providing a single dose of a future coronavirus vaccine to all 7.8 billion people in the world will require the use of 8,000 Boeing 747 cargo aircraft, and that planning needs to begin now.

IATA's director general and CEO, Alexandre de Juniac, said in a public statement that "safely delivering Covid-19 vaccines will be the mission of the century for the global air cargo industry."

The Guardian reports that more than a decade of police crackdowns on major gangs and economic uncertainty are making it harder for the yakuza to tempt young men with promises of easy money.

For the first time since records began in 2006, 51% of regular yakuza members are aged 50 or over, according to a new report by the national police agency. Less than 15% are under 40, and those over 70 account for just over 10% of total membership.

Unable to hold face-to-face meetings with potential investors, venture capitalists are seeking new ways to meet start-ups, including a service which arranges virtual meetings inside the video game, Fortnite.

Matchbox.vc matches technology investors with start-up executives through video game sessions in the hopes that companies will find their dream investment.

Algae is used in lots of ways, from food to health supplements to fuel. Now we can add flip-flops to the list. Flip-flops, commonly made from rubber, foam or plastic, are hugely popular all over the world. When people lose theirs on the beach, which happens frequently, the flip-flops are swept into the ocean to join the rest of the plastic pollutants collecting there. 

Currently, 34 vaccine candidates for the novel coronavirus are in various stages of clinical development, according to the World Health Organization (WHO). However, the process is long, typically many years. In the race for a vaccine, there is some debate on the merits of rushing through the process.

CNN reports that scientists have created a mouse embryo that's 4% human. The hybrid is what scientists call a human-animal chimera, a single organism that is made up of two different sets of cells. This human-mouse chimera has by far the highest number of human cells ever recorded in an animal.

This opinion is a rant—a passionate, typically angry, speech or piece of writing about one particular topic.

This rant is about American anti-maskers—people who are opposed to wearing a face mask during the coronavirus outbreak. 

The iconic "Sophie" pedestrian crossing signal (pictured above) first appeared outside City Hall in Amersfoot, the Netherlands, in December 2000. Since then, she has inspired female figures on crossing signals around the world. As Dutch Ambassador Wim Geerts said in 2013, "Sophie is much more than a traffic light, as she encourages us to think about women's rights." She also seems to improve pedestrian safety—more people stop for Sophie than for lights with common male figures.

Mascots, or yuru-kyara, are incredibly popular in Japan. There are yuru-kyara for everything, from sports teams to prefectures to a toilet disinfectant (seriously). Now they're offering the world a mascot for the novel coronavirus pandemic.

Around 48 million people have some degree of hearing loss. Given the rise of wearing face masks in public, hearing-impaired people are struggling to understand those wearing ordinary masks as they muffle their voices. One way to solve this problem is to put on masks with clear windows.

When wearing such a mask, people can see your lips, which allows the deaf or hard-of-hearing to lipread and see facial expressions.

Technology has been quite a godsend for fraudsters. In the past, if you wanted to recreate a valuable painting you needed to painstakingly paint it, or if you wanted to open a fraudulent bank account, you had to physically grow a moustache to fool a bank teller. But these days, it's much easier. To beat two-factor authentication, scammers can simply transfer your phone number to a new SIM card and gain access to every penny you own.

Classic Australian lollies Redskins and Chicos are set to be renamed so they don't marginalise consumers, confectionery company Allens has announced.

The decision was made by the brand's parent company, Nestlé, because a redskin is a slang term for Native Americans in the U.S., where it is considered offensive. Chico, which is Spanish for "boy", is also used in a derogatory way. 

In a Forbes article, Bernard Marr predicts the 25 most important technology trends that will define the next 10 years. Not surprisingly, a number of them involve A.I. and IoT. Others will come from things like virtual, augmented and mixed realities; nanotechnologies; 3D printing; and Big Data.

The past 20 years have given us major technological game-changers, like Bluetooth, social media, and, of course, the iPhone. Other innovations include flash drives, hybrid cars, GPS, and the Cloud.

According to CNN, the outbreak of the coronavirus is pushing many Americans to buy their groceries online. With shoppers stuck in their homes, downloads of Walmart's grocery app and Shipt increased by 160%, and 124%, respectively, in early March compared with the same period last year. Instacart more than tripled, increasing by 218%!

According to BigThink, a publication focused on education, what consciousness is and where it comes from has absorbed great minds for thousands of years. In today's world, it's a question posed by physicists, cognitive scientists, and neuroscientists. There are a few prevailing theories.

The first is known as materialism. This is the idea that consciousness emanates from matter. In the case of people, by the firing of neurons inside the brain. If you take the brain out of the equation, then consciousness doesn't exist at all.

Global News, a Canadian news outlet, reported that astronomers detected an explosion over fifteen times the size of our galaxy. This makes it the biggest blast ever recorded.

According to National Geographic, the remains of two white giraffes were found in a nature conservancy in northeastern Kenya. The giraffes likely had a rare genetic condition called leucism, which inhibits skin cells from producing pigment. It is believed that they were killed by poachers.

The animals had been well-known since 2017, after rangers spotted them in the conservancy and posted a video to YouTube, which then went viral.

The cashless economy has become increasingly prevalent in developed countries such as the U.S. and Japan. Consumers are incentivized to use debit or credit cards through discounts and freebies, and banks and credit card companies collect information on people’s spending habits.

Over the past 20 years, American television entered a Golden Age. Before the turn of the millennium, most TV shows followed familiar patterns: crime shows and situational comedies—also known as sitcoms—consisted of self-contained episodes with little plot development through a season or the run of the show.