Today's edition of CNN 10.

It's great to see you this Wednesday.

I'm Carla Zeus getting outside this week away from my booked up bookshelf.

We'll start across the Pacific.

The U.

S.

State Department is telling Americans to reconsider any upcoming trips to China and to Hong Kong, a special administrative region of China.

There are two main reasons for this.

According to the United States, the ongoing threat of Cove in 19 and what the U.

S.

Government calls China's arbitrary enforcement of local laws will explain that tensions were high between the United States and China.

Factors include an ongoing trade dispute, controversial Chinese islands in the South China Sea and disagreement over recent events in Hong Kong.

The U.

S says China has been detaining US citizens in the communist country, sometimes preventing them from leaving it without due process of law.

American officials say this is being done for political reasons, and that there's no way to find out how long the detentions will last.

According to the New York Times, China has criticized the travel warning, saying it's one of the safest places on the planet and that the Chinese mainland hasn't seen any transmissions of coronavirus for a month.

But thousands of arrests have been made in Hong Kong over the past year, and China has imposed a national security law in the city.

This is limited political dissent in Hong Kong, ah place that wants Mawr independence from China, but that China says it has ultimate control.

Over 12 people were recently arrested for apparently trying to flee Hong Kong on a motorboat headed for the island of Taiwan.

Chinese authorities detained them for illegal border crossing.

Like Hong Kong, Taiwan is a place that disputes its status with China.

This island of 23 million people is a vibrant democracy that sits just across the sea from the world's largest one party state.

I'm Matt Rivers in Taiwan, officially known as the Republic of China, and I'm Steven Zhang in Beijing, the capital of what's officially known as the People's Republic of China.

This name has existed since 1949 when the Communists, when a brutal civil war and forced the previous government to flee to Taiwan.

Both sides set up their own governments, each claiming to be the only legitimate ruler of the entire Chinese territory, and decades of hostility ensued.

There was no traveled trade or communications between both sides, and the threat of military action was a constant presence.

But tensions began to ease in the 19 nineties, when Beijing and Taipei authorities began a Siris of meetings and correspondence that deliberately put aside the issue of sovereignty in favor of resolving practical matters.

Thes dialogues paved the way for economic and cultural cooperation.

Businesses from Taiwan have invested billions of dollars here on the mainland, the world's most populous country and second largest economy, and millions of mainland tourists have flocked to Taiwan after direct flights resume.

But still, China insists Taiwan as a breakaway province that must be reunited with the mainland, by force if necessary.

Since Taiwan became a democracy in the late 19 nineties, cross strait relations have fluctuated, depending on which of the two main political parties is in power on the island.

Bilateral ties warm up when the Kuomintang, the party that favors closer ties with China, rules Taiwan and relations deteriorate when Taiwan's leader is from the Democratic Progressive Party, which traditionally supports Taiwan independence.

Tensions have been climbing since 2016 when the pro independence party's nominee tying one was elected president.

Chinese President Xi Jinping has hardened his rhetoric and policies towards Taiwan.

With analysts seeing increased Chinese military drills near Taiwan, many people here are wary of the growing strength and ambitions off their massive neighbor just across the sea, fearful that their unique way of life cultivated over the last seven decades, maybe under rising threat, Hurricane Sally did not make landfall on Tuesday morning, as forecasters initially thought it would.

And the reason could make the storm's effects worse in some ways.

As it approached the U.

S Gulf Coast, Sally slowed down Ah lot.

As of Tuesday afternoon, it was still in the Gulf, moving toward land at two MPH.

That's slower than most people walk.

The good news is that it didn't get stronger before it's expected landfall on Wednesday.

Sally was still a Category one hurricane when we produced this show with sustained wind speeds of 80 MPH.

The bad news is that it's incredibly slow pace could mean it dumps more rain on the places it hits, and it appeared Tuesday like it was headed for the state line between Mississippi and Alabama.

The forecasters still weren't sure where the Hurricanes exact landfall would be.

The governors of Alabama, Louisiana and Mississippi had requested emergency government help.

A Sally approached between 10 and 30 inches of rain or possible between Mississippi and the Florida Panhandle, and the area was on the lookout for tornadoes as well.

This is in addition to the dangerous winds and potential storm surge, the seawater blown inland by the approaching Hurricane Sally.

If you lived in Homestead, Florida, in 1992 Andrew is a name you will never forget, just like in 2005 if you lived in New Orleans area Katrina.

The military started naming storms after their wives, their girlfriends, but none of these names were made public.

So 1950 everything changed.

Several storms formed out in the Atlantic about the same time.

It created a lot of confusion.

So the U.

S weather bureau said, Okay, let's start naming storms.

And they actually started by using the World War two Alphabet Able Baker, Charlie Dog Easy.

But this created confusion as well, because every year the storm names were the same.

It wasn't until 1979 that we started alternating male and female names.

We recycle that list every six years.

In the Atlantic basin, we use English, Spanish and French names.

No storms are named after a particular person.

In fact, you can't request a storm to be named after you.

That entire process is handled by the World Meteorological Organization.

A storm name will be retired if it is too costly or deadly, and it would be inappropriate to use it in future years.

In fact, since 1950 there have been nearly 80 storm names retired.

And what happens if we go through all of the storm names?

Well, it happened in 2005.

We ended up going to the Greek alphabet, so that's what's in a name.

Took a long time to get here.

But just like each individual name, each storm tends to have its own personality.

12th trivia.

What is the only terrestrial planet on this list?

Neptune, Saturn, Jupiter or Venus After Earth?

Venus is the second largest terrestrial planet, meaning it has a solid rocky surface and an atmosphere.

It's sometimes gets relatively close to earth.

It's almost the same size as Earth.

It's referred to his Earth's twin.

Why don't we stick a rover on Venus?

Because its surface is hot enough to melt lead.

There's a lot that's unknown about Venus.

It's a planetary mystery.

But in an M.

I.

T.

Study published in the journal Nature Astronomy, researchers say they've detected a gas on Venus that we also have on Earth.

The gas is phosgene, it's flammable, toxic, and it stinks like a plate of decaying fish with garlic.

But phosgene gas is produced on earth, at least by bacteria that don't need oxygen, the kind that exists in swamps, sludge and animal guts.

So does this mean that something living some kind of bacteria maybe also exists on Venus to produce phosgene?

Scientists say the short answer is no dry and acidic environment that would destroy the forms of life that exists on Earth.

So how did phosphate and get to the other planet?

Theories range from lightning and volcanoes to tiny meteorites and chemical reactions and Venus's clouds, but no one knows for sure.

So scientists are pushing for more research to be done on Venus to figure out why the gas is there.

Some folks might be a little intimidated if they looked up in a convenience store and saw this thing standing 3 ft away.

Thankfully, it doesn't want to wrestle.

It's a robotics companies answer for the need to restock store shelves while maintaining social distancing, at least between people.

It's three pronged hands can be controlled remotely by a person in another location.

It doesn't appear to be as fast as human stockers.

It could take their jobs, and we don't know how the cost of the robot compares to hiring a human for the work.

And while you can Onley give it, ah, high three out of five, it kicks stocking store shelves into a whole new gear, guaranteed not to steal any drinks because that would short circuit the very thing that makes it robotic.

It turns any shop into a machine shop, although all customer complaints would have to be handled remotely.

Barnegat High School in Barnegat, New Jersey, gets today's shoutout.

Thank you for leaving a comment on our YouTube channel.

I'm Carla Zeus for CNN E.