2 . JeffBezos has a rule at Amazon, or perhaps more appropriate a philosophy. If a team cannot be fed by two pizzas then that team is too large. The reasoning is quite straightforward and basic. More people means more communication, more bureaucracy, more chaos, and more of pretty much everything that slows things down, hence why large organizations are oftentimes considered as being so inefficient.

In 2013 Gallup released a report called “The State of The American Workplace", in which they found that smaller companies had more engaged employees. In fact,42% of employees working at companies of 10 or fewer were engaged at work versus only 30% of employees at large companies.

Most people are not familiar with the Ringelmann Effect which is the tendency for individual members to become less productive as the size of a group increases. This concept was named after Maximilien Ringelmann, a French professor of agricultural engineering who passed away in 1931.In one of his experiments he asked volunteers to perform a very simple task, to pull on a rope. He found that when only one person is pulling on the rope they give 100% of their effort; however, as more people are added the individual effort goes down.

This experiment was recreated in the 1970's by Alan Ingham who came up with the concept of “social loafing” which helps us understand why the individual effort decreases as the team size increases. So why does this happen? Because it becomes harder to extract the individual contributions and performance of each person.

Organizations should really think about what their team structures look like and create and follow similar “two pizza rules”. It's no coincidence that smaller organizations are oftentimes more nimble while large organizations look like they are stuck in the mud.

4 . One of my earliest memories was walking up to the smell of camp smoke and my mother’s hot chocolate. My parents were poor, and we lived in the countryside in Portland. Dad had two jobs and Mom was disabled, but that didn’t stop them from heading into the Cascade Mountains several times a year.

Our clothes were old and worn and our food was usually cheap and simple. However, we were always satisfied with our hot chocolate, which was made in a traditional way handed down from my grandmother to my mother.

There was no store to buy anything we needed. We just had powdered cocoa in our camp.

Mom would set the smoke-blackened coffee pot at the side of the fire and slowly warm the milk, adding chocolate and sugar, and stirring (搅拌) until the contents became thick and rich brown. The wonderful smell of chocolate filled the camp. More than once, I could remember people that we had just met hours before stepping into our camp to enjoy mother’s creation.

Once we were trapped in our tent (帐篷) for days because of a terrible rainstorm. Every morning I was woken up by the attractive smell of Mom’s hot chocolate.

Now, many years have passed, when we head for the mountains, I still use that worn coffee pot. And we always bring extra cups for the neighbours who will certainly turn up.

I have told my family a lot about Mom, and it seems that nothing brings back those warm memories better than sitting around the fire at night and tasting sweet hot chocolate.

5 . A Universal Greeting: Shaking Hands

A handshake seems to be a normal gesture. In fact, in the 9th century BC, an ancient site during the ruling of Shalmaneser III clearly shows two figures holding hands.The Iliad,usually dated to the 8th century BC, mentions that two characters “taking each other's hands and expressing their loyalty," Centuries later, Shakespeare once wrote of two characters who shook hands and swore to be brothers in the bookAs You Like It.Shaking hands seems to be an ancient custom whose roots have disappeared in the sands of time.

Historians who have studied ancient etiquette books note that the modern handshake did not appear until the middle of the 19th century, when it was considered a slightly inappropriate gesture that could only be used between friends. But what if Shakespeare had written about handshaking hundreds of years earlier?

According to author Torbjorn Lundmark in hisTales of Hi and Bye: Greeting and Parting Rituals Around the World,the problem comes in differing definitions of the handshake. The early handshakes mentioned above were part of making deals or peace; King Shalmaneser 111 referred to a rebellion in which he signed a treaty with the King of Babylon. In theIliad,Diomedes and Glaucus shook, hands when they realized they were guest-friends, and Diomedes declared: "Let's not try to kill each other." Shakespeare was similarly referencing settlement of a conflict.

The modern handshake as a form of greeting is harder to trace. As a Dutch sociologist Herman Roodenburg — the chief authority for the history of handshaking — wrote in a chapter of ananthologycalledA Cultural History of Gesture,“More than in any other field, that of the study of gesture is one in which the historian has to make the most of only a few clues”.

One of the earliest clues he cites is a 16th-century German translation of the French writer Rabelais'sGargantua and Pantagruel.When one character meets Gargantua, Rabelais writes, “He was greeted by countless hugs and countless good days." But according to Roodenburg, the 16th-century German translation added references to shaking hands.

A popular saying suggests that Cleland's statements against bowing were actually a wish to go back to a potentially traditional method of greeting in Europe. As the centuries progressed, handshaking was replaced by more hierarchical ways of greeting — like bowing. According to Roodenburg, handshaking survived in a few remote places, like in Dutch towns where some would use the gesture to make peace after disagreements. Around the same time, those who valued equality also made use of handshaking. Then, as the Continent's hierarchy was weakened, handshaking became a common practice among people of the same rank, as it is today.

6 . Free school meals are back in the news. Footballer Marcus Rashford’s petition(请愿书) to extend free school meals provision(供给) into the school holidays has collected 1.1 million signatures, causing the government to reverse policy. It has restarted the debate over free school meals, fuelled, most recently, by figures forecasting that if the government ends as planned the current £20 top-up(附加款), another 200,000 children will slip into poverty. This is in addition to the 550,000 children already living in poverty previous to Covid-19.

The roots of the current school meals system lie in the mid-19th century. In Manchester, independent charities as well as official bodies started to provide free meals for undernourished children in the 1870s. When education became compulsory in the following decades, the extent of the issue became apparent. Proponents of feeding starving children pointed out that it was due to government order that children were in school, not working and contributing to the family food budget, so the government should pay.

Reception was mixed. Then, as now, children rejected foods they weren’t used to. Diaries of the time talk of “little bags of mystery” (sausages). Some children were put off brassicas(芥菜类) for life. Finding the balance between cheap and good proved hard. The chief medical officer talked about the lack in calorie value and elements of a well-balanced diet which a needy child does not get at home, such as milk, cheese, eggs, green vegetables, fruit and meat”. In 1980, the Tory government, desperate to cut costs, made provision largely optional and abolished nutritional standards. Over the next 15 years convenience and cost became the most important.

Today, school meals provision is linked to benefits: in England around 17 per cent of children are entitled to free school meals. Provision is outsourced(外包), leading to huge variation. In the last year, we’ve seen all of the age-old debates repeated once more. How do we decide who is entitled? How do we guarantee quality? Who decides what children eat? Who pays? Undernutrition does not just have physical effects, but also affects behavior and ability to learn. It has a lifelong impact. The arguments around free school meals seem never to end. But they are hugely important and, until poverty is ended, they will not and should not go away.

9 . Have you ever had the feeling that you can't think when there is too much noise around? Did you ever think a fish could experience that feeling too? A recent paper published in Science titled “Soundscape(声景)of the Anthropocene Oceans”, combined over 10,000 scientific papers, confirming that undersea life knows that exact same feeling, more often than not. Anthropogenic(人为的)ocean noise, also known as underwater noise pollution, has created a dramatic impact on marine life due to “human-caused” activity within and neighboring our oceans.

Disney Pixar's animated film Finding Nemo educated us about the ocean, and specifically within the ordinary world of a clown fish. A fact many may not know is that clown fish spend the first part of their lives as larvae(幼体), drifting with the current(洋流)of the ocean until they become strong enough to swim against it. Once they are powerful and strong, they head home in sheltered coral reefs. There is only one disadvantage-the fish can't physically see the reef, but they can hear it. The only problem is, if they can't hear it, will they ever make it home?

Our anthropogenic ocean noise, such as cargo ships, ship and boat propellers, surfing, deep sea mining. etc. are causing destruction of marine life. According to Time, sound is the sensory signal that travels the farthest through the ocean. Anthropogenic noise drowns out the natural soundscapes, putting marine life under immense stress. Altogether, this stress then affects their general health, disturbs their behavior, physiology. reproduction and, in extreme cases, causes death. Marine life can adapt to noise pollution, however, only if they can escape it. This only renders further complications(困难, 问题)of straying(使偏离)species from their traditional breeding regions or separating them from their families.

Now, what if we told you there is already a solution? Multiple remedies, ideas and designs are currently in the works or already exist to get rid of and change the damage of anthropogenic ocean noise. As Time explains, from wind-powered ships to noise-reducing propellers(螺旋桨)，floating wind turbines(风力发电机)and “bubble curtains” that muffle construction noise, the solutions are already available and in some cases, cost-effective(划算的). The authors of the paper hope it will catch the attention of policymakers, who historically speaking, have ignored the mater still to this day.

Of all the challenges ocean creatures are battling, luckily sound pollution is the easiest compromise humans can make. Once the noise has decreased, marine life will be able to better manage everything else it is up against.