long and shallow waves tend to travel faster than the short hyla ones which slow themselves down. within the waves the water particles follow circular or orbital paths. that this orbital movement extends deep down in the water the deeper the water the smaller the radius of the circular motion but when to circle in the water particles hit the seabed they're stopped and then. that makes shallower water waves. breakers are typical shallow water waves. they occur when the water particles below the surface are slowed at the bottom of the particles above continue to move on their circular patterns unhindered. be unchecked water particles move upward making the wave tower up at the shore and then break. to the delight of the surfers. ya block up to it makes you happy it's very exhausting by night time you're totally knocked out but happy you forget all the everyday stress it's just great. but the best brains don't come on demand which is why this evening until yes he got is still in the water waiting for that perfect wave. but waves can also be scary in the person sail is reported toweri

chinese government has expanded its travel restrictions they now affect more than 40000000 people scott hylas in beijing he explains the latest steps being taken by china to stop the spreading of the virus. and there were a detail in part this is right in central beijing now this would be normally the 1st day of lunar new year this would normally be very crowded behind me actually there was a fair lunar new year's fair that was planned here and obviously that has been canceled now this is something we're seeing right across china movie theaters shot disinfecting of subway trains on an hourly basis here in the capital beijing we know in shanghai they've closed the movie theaters and festivities that would normally really be crowded this time of year that's the big big celebration here in china those have all been shut down obviously worried about some people that might be infected by this corner virus but have yet to show any symptoms there's one problems down in the south closed it's an island problem close to where the epicenter is but not bordering it they are taking the protective measure

chinese government's going to do something for those chinese citizens there who want to get back home ok hyla thank you for that update from beijing. u.s. democrats are stepping up their calls for witnesses to testify at the impeachment trial of president donald trump ahead of a crucial senate vote on friday it comes as the latest hearing was overshadowed by fallout from an upcoming book by the former national security adviser john bolton which could implicate the president to reports from washington. donald trump's defense team has a novel argument for his acquittal that the president asking ukraine for dirt on a political opponent may be in his personal interest and also in the interest of the united states making him immune if a president does something which he believes will help him get elected in the public interest cannot be the kind of quid pro quo that results in an impeachment democrats prosecuting trump say his intent was purely for political gain so all could prose are not the same some are legitimate and some are corrupt and you don't need to be a mind reader to figure out which

let's head live now scott hyla he's in beijing so it's called now that we've got deaths outside of the epicenter is that a sign that the measures to try and contain this virus not working well there's that's a very good question mainly because you know when you look at this virus not much is known about it yet they're obviously studying it and analyzing it to see how it what the gestation period is you know what really caused it where it came from all those answers are still yet to be definitively answered and one of the biggest ones that leads into your question and that is. what is the gestation period for this and also mainly because there have been some cases reported there have been asymptomatic patients who have contract of the virus but haven't shown any symptoms until they were tested so that's a big concern because when you look at you know this is this is several weeks into the outbreak of this virus obviously it has ramped up recently but the big concern is what's happened to all those people who were there who could have been infected carriers if you will but didn't really

the united states government had a program that it was a scary thing you go to this camera tells you hyla you're going you're sitting in 18 f. . no one expects that when he says it's over to the airport that there's some camera that knows who you are by your face i didn't show a ticket through my face they knew who i was knew that i was sitting in. not vastly different from we're seeing in china and equally scary so it gets into that whole damn community that you were going to if you want to and you kind of want to be right is he don't you know this it cuts down on if you lose a paper ticket if your phone battery dies you still get to see some of your work really represents the tension here that i want to get to today which is in part you coined the term helped popularize the concern about the digital divide people being left out and not having access to the internet we talk about this globally today about those that are not yet wired in not connected but if you go into the united states there are communities with children they do not have regular internet and they were on the other hand

with the government here on that and probably will take place over the coming days as a serious count hyla reporting live from beijing scope many thanks indeed will health authorities in hong kong have provided an update on the situation there a day after emergency measures were declared in the city which is here as adrian brown has an updated tally of cases. but the number of suspected cases has now gone up by 77 taking it to more than 380 suspected cases and the number of confirmed cases have risen from 5 to 6 also another confirmed case in macau taking the total there to 3 the hospital 30 also say they are readying another quarantine center turning a former holiday camp into a quarantine center and we've also heard from a microbiologist who was talking yesterday he says that he believes there are number of undetected cases in hong kong now some experts are now warning the incubation period for this virus could be up to 14 days so it's possible that somebody who was in will hand 2 weeks ago is now in hong kong and could have the virus now in response to the spreading virus the hong kong

north of her bay province the epicenter devise with the threat of quarantine they were forced to scott hyla has that story. to get a better idea of how the coronavirus is having an impact on communities closer to the epicenter in will han and hold a province. we took a south bound train from beijing we got off and central one province its southern border with who they covers more than 400 kilometers the longest of any other province and the spreading of the virus is a big and sensitive concern as we are about to exit the station we were met by a local government official he knew we were coming and told the local police our plan this to try to go to china and i told them they composite a checkpoint they have to go back to beijing. but they said they wouldn't stop us instead they would follow us until we reached a checkpoint to the community we wanted to visit the sign says hold a car stop a check for about an hour away from the train station the town you on exit from the freeway this is described as the medical supply capital of china so we wanted to go in because the face masks are manufact

government has expanded its travel restrictions now affect more than 40000000 people out as a risk on hyla reports from beijing. like the past several days. days the people of china again woke up to news that the corona virus has claimed more lives and more people have become infected. living with his family and will han moved to china 25 years ago we spoke to him on skype are you worried even further down the line that this this quarantine could last a month 6 weeks so this is like for you and you were. so yes. ok well we don't go out. on monday right so there's already all these concern is shared by people here in beijing and they're worried about the disease i always wash hands before and after me and every time i go out i wear a mask back inside this time we didn't realize all serious to situation was but we've learned and doing much more actively knowing the government of responding quickly and we fully support them 17 years ago the chinese government was criticized for acting too slowly when the sars virus killed nearly 800 people well most of whom province the epicenter of the coron

let's get an update from scott hyla who is joining us from beijing and with the head of the world health organization now heading to beijing to discuss how to contain the virus shows just how serious the situation really is scott what are you hearing. yes absolutely it's very very serious and the government here as we heard is has taken it to the top levels of government on how they're going to deal with the coronavirus situation actually the premier he's the 2nd most powerful government official here in the country premier league is in charge now of the government's efforts to control the coronavirus situation now to give you an example of how these mechanisms go into place that try to prevent the further spread of it we're in front of a hospital here in central beijing there are 220 year olds inside 20 something year old inside man and a woman they traveled from who province about 4 or 5 days ago they've been in the hospital since that's because when they went to a hotel they took their temperature in there was elevated so they've been put in here we spoke with the woman on the telepho

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crackdown by china on the terror shape now many in taiwan fear the unrest could spread that scott hyla from taipei tony chung shuttles between hong kong and taiwan's capital taipei every month he's part of a growing support system for protesters looking to flee hong kong because they're worried about their safety or fear of going to jail the 18 year old is also a pro-democracy protesters the chain on presbyterian church in taipei has opened its doors to fleeing protesters always and we. see what china has done to suppress us in hong kong could possibly happen to taiwan we hope that for the sake of protecting its own democracy taiwan can extend a helping hand to hong kong there's a need for more than 200 protesters have come to taiwan but they live in a legal limbo holding only temporary visas for the pro independence ruling party here in taiwan the d.p.p. has seen a surge in support since the protests began in hong kong many view this weekend's election as a referendum on taiwan's relationship with mainland china one of the protesters who left hong kong for taiwan sees his future hinge

is live for us in hong kong which is just to clear the health emergency but 1st let's go to scott hyla who is in beijing scott chinese new year celebrations going ahead despite the threat from this corona virus but they will be muted to say the least this year. absolutely yes and we've been to a couple of parks in here on the streets here in beijing and it's a very very quiet day this would normally be a time when people would come out they did their spending time with their families but they would come out for these festivals and in fairs that normally would be held at the parks and around here the capital beijing but that is not happening today here it's not happening across the country as well obviously because of the concern of this coronavirus being spread even further and what's raising part of that concern is that there are indications strong indications that people can be asymptomatic yet still carrying this coronavirus another words so it might be carrying it in unwillingly pass it on to others before they know they actually have it so obviously taking every precaution here al

government's actions are they going to be ok moving forward all right for now scott thank you scott hyla there live in beijing well leading for all ages in hong kong there warning that the outbreak is was some what the chinese government is saying adrian brown has more. we've been hearing the softer noone from caprio long he's a leading epidemiologist he is the head and he's the dean of hong kong university's medical medical faculty and he basically says based on commuter computer modeling that they've been using as other experts are around the world right now he estimates that in fact 44000 people have been infected by this virus in who hand and he also says that the rate of infection will double every 6 to 7 days so again this is based on computer modeling it doesn't mean it's necessarily going to happen but he said it is their forecast as sort of worst case scenario you might say so these are alarmed words coming from hong kong and they appear to in a sense contradict what the world health organization has been saying because the world health organization so far hasn't felt compelled

going well of course will continue to monitor events certainly in china with you through the day scott hyla thank you well the curl of break has also said the jitters through global financial markets asian shares slipped again early on choose day as china took drastic steps to control the virus to see in the u.k. france and germany also dipped on fears about the potential economic empowerment meanwhile china's along with slid to the lowest level this year affecting commodity linked currencies like the australian dollar was all secret is asia business editor for al-jazeera online joins me now from kuala lumpur nice said not so just explain to us perhaps why we're seeing this reaction in the markets and what seems to be the driving force behind it. well so what you have to remember as always is there are 2 forces that drive financial markets and that's greed and fear and right now with all the uncertainty surrounding the virus and the impact the potential impact that it's going to have it is that fear element that is driving the markets so viciously when market traders are faced with such a s

and france have made plans to evacuate their citizens from city scott hyla begins our coverage from beijing. like the past several days the people of china again woke up to news that the corona virus has claimed more lives and more people have become infected. living with his family and will haunt all the worry moved to china 25 years ago we spoke to him skype are you worried even further down the line that this this quarantine could last a month 6 weeks so this is like a war you don't. want just. call we don't go out. on. this or it's all these concern is shared by people here in beijing and they're worried about the disease. i always wash hands before and after me and every time a girl out i wear a mask. time we didn't realize all serious to situation was but we've learned and doing much more actively now and the government is responding quickly and we fully support them 17 years ago the chinese government was criticized for acting too slowly when the sars virus killed nearly 800 people well most of whom province the epicenter of the corona virus is now under lockdown there is concern abo

intimidation from china prone dependence incumbent sighing when won with 57 percent of the vote scott hyla reports from taipei. the day after taiwan's historic election reelecting pro independence president signed when the people of this island of 24000000 enjoyed their winter sunday. i hope that both thailand and china well china should stop its military threats toward taiwan i believe she is the right leader to deal with china. i do not think she would try to be confrontational after last night we voted to still remain part of a big family but then we differ in political opinions we share the same thing belief in democratic values with the overwhelming victory for sign one and the d.p.p. some feel that there is added pressure for progress and recognition from china and beyond on the security of the islands independence. in saturday's elections i garnered the most votes of any presidential candidate in the young democracy here promising to keep her hardline stance for independence with growing pressure from china beijing issued a statement shortly after so i gave her victory speech as if

i was there a scone hyla reports from beijing. rushing to catch the last trains before the lunar new year many of these passengers at the beijing west railway station i thinking of the corona virus you were judging i don't think this virus has been properly controlled i just came back to china i read a lot of news i'm too met i'm not very satisfied with how the government prevented and controlled the disease they're afraid of getting infected i am really afraid of those people were relieved and left but i do hope the situation will be improved soon. and those inside the city of will han are becoming more frustrated because medical supplies are running short and hospitals are short staffed many festivals for the lunar new year holiday have been canceled across china and not just in the central province the epicenter of the virus in a rare move the government has closed the forbidden city here in beijing over health concerns related to the coronavirus something they didn't do some 17 years ago during the sars crisis. the chinese gov

let's go live now to scott hyla who joins us outside a bus station in beijing scott i believe there have been more restrictions on travel what can you tell us. there has been yes here in beijing the capital you know there are several long distance bus stations here in the city as of midnight so just several hours ago all service in and out long distance bus service has been severed here to beijing and that is because the bus service here is a little bit less regulated than the high speed trains and the airplanes so the government really wants to be able to track people who travel from long distances here into the city so that's why they have cut the bus service a long distance plus service in and out of beijing again this is one of several stations here in beijing and just to underline you know we heard from xi jinping yesterday the very rare move pope we are standing committee these are the 7 most powerful people in china met on the 1st day of lunar new year that's a very rare move and as we heard she's been paying said it's a very grave situation and to underline that he said that one