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GERMAN OF THE WEEK

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Boy – the world’s smallest film star

You might say he is just a collection of atoms, but then, really, aren't we all? The Local's German of the Week is Boy, from the world's smallest stop-motion film, made with individual atoms moved by a German-led research team.

Boy - the world's smallest film star
Photo: IBM

The video A Boy and His Atom is being watched around the world, making Boy and his German father Andreas Heinrich famous way beyond the confines of science.

Heinrich is principle investigator at IBM – a research rather than detective position. He leads the scanning probe microscopy project looking for possible data storage use of nanostructures. This resulted in the creation of the world’s smallest magnetic bits, made of just 12 magnetic atoms.

This answered the question of how many atoms it takes to reliably store one bit of magnetic information. Currently it takes about a million atoms to store a bit of data on a modern computer or electronic device. If commercialized, this atomic memory could one day store all of the movies ever made in a device the size of a fingernail.

And although when published in January 2012 in the journal Science, this excited those in the physics and computing world, it is only now that the work is receiving wider exposure – thanks to Boy.

In the film he makes friend with a single atom and ends up dancing, playing catch and bouncing on a trampoline with it.

“Capturing, positioning and shaping atoms to create an original motion picture on the atomic-level is a precise science and entirely novel,” said Heinrich in a statement.

“This movie is a fun way to share the atomic-scale world while opening up a dialogue with students and others on the new frontiers of math and science.”

The atoms were moved with the IBM scanning tunnelling microscope, which weighs two tonnes, operates at fiercely cold -268C and magnifies the atomic surface more than 100 million times.

The researchers used it to move an extremely sharp needle along a copper surface to pull off individual atoms and take them to a specific spot. The scientists took 242 images and used them as frames for the animation.

“Research means asking questions beyond those required to find good short-term engineering solutions to problems. As data creation and consumption continue to get bigger, data storage needs to get smaller, all the way down to the atomic level,” said Heinrich.

“We’re applying the same techniques used to come up with new computing architectures and alternative ways to store data to making this movie.”

The Local/hc

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TRAVEL

Travel: Germany downgrades Covid-19 risk status of USA

The United States is no longer classed as a "high incidence area" by Germany - it has returned to being a "risk area".

Travel: Germany downgrades Covid-19 risk status of USA
People walking in New York in May 2020. Photo: DPA

The Robert Koch Institute (RKI) changed the risk classification of the United States on March 7th.

The US was previously classed as a “high incidence area” by the RKI. These are regions where the incidence is over 200 Covid-19 cases per 100,000 residents with a period of seven days.

However, now it’s a “risk area” – which is used by German authorities to describe a region with an increased risk of infection, usually above 50 coronavirus cases per 100,000 people in seven days.

Other factors are also taken into account, such as measures in place.

It means the travel requirements for people coming from the US to Germany have changed.

However, entry from the US is only permitted in a few narrow exceptions. Proof of urgent need to travel is required, German authorities say. You can find more information in the story below.

READ MORE: When are Americans allowed to travel to Germany?

What happens if I need to travel from the US to Germany?

If you are a German resident from the US, or fall into one of the exception categories, you still face strict testing and quarantine measures.

All travellers must have a negative Covid-19 test result at the latest 48 hours after they enter Germany. It must be presented to authorities if they request it.

Some individual airlines may however still say that travellers have to present a coronavirus negative test result before boarding is allowed. You should contact your airline before travel to check.

Both PCR tests as well as rapid anitgen tests are accepted if they meet the quality standards. Testing is still mandatory even if travellers are vaccinated or have recovered from a coronavirus infection. 

People returning from “risk zones” are required to self-isolate for 10 days after they arrive.

The quarantine can usually be ended with a negative coronavirus test result taken at the earliest five days after arriving in Germany.

However, states can differ on their travel regulations so check with your local authority before travelling.

Everyone entering Germany is also required to register online.

New “high incidence areas”

In the RKI’s latest travel classification list, Sweden, Hungary and Jordan are now classed as “high incidence areas” which means stricter testing and quarantine rules apply.

Areas of “variant concern” include Austria’s Tyrol region, the UK, Brazil, Portugal and Ireland. Even stricter rules apply for these regions.

You can find out more information about travel rules in our story below.

READ MORE: What you need to know about Germany’s latest rules on foreign travel

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