a very strong move here imposing these sweeping sanctions putting a full block a full freeze on all assets of all parts of the government of venezuela in the us and also imposing sanctions or setting up the. situation to impose sanctions on any person or business that goes significant business with the government of venezuela so this goes well beyond anything we've done before and it really is a very strong move by the president u.s. president trump and shrugged off fears of a protracted trade war with china washington accuse china of being a currency manipulator after the one fell to its lowest value in more than a decade the f.b.i. will investigate a mass shooting in the state of ohio saying the gunman hunted interest in violent ideology 24 year old killed 9 people including in sr at a popular nightlife area in dayton on sunday a police chief in the u.s. state of texas has apologized to 2 white officers on horseback

a black hand cuffed man down a street by rope photos of the arrest of sparked widespread outrage galveston's police chief says his officers showed poor judgment those stories of course can be followed on our website at al-jazeera dot com it's updated through the day but with more news in half an hour next to al-jazeera it's techno to stay with us. you stand the differences. and the similarities of cultures across the world. al-jazeera. captaining a leading youth team at 16 years old takes determination. to that staying on top of your game at school. the whole family bands together and shares the

sacrifices necessary for a song to have a shocked at becoming a professional footballer. home game on and. this is techno innovations that can change lives the science of fighting wildfires we're going to explore the intersection of hardware in humanity and we're doing it in a unique way. this is a show about science lol i know i sign ticks tonights techno investigates the very thing to ever bought this cat way more than they bargained for yes they did it's everywhere in clubs street corners in cars they say it's safe and can help break the cigarette habit if i had to say what is more dangerous honestly a very well but what's really inside those pieces you never know what you're getting dr crystal dilworth there's

a neuroscientist who specializes in nicotine studies she'll bring us the latest research what happens to your lungs when those metal particles go and sit and read to davison is an environmental biologist and they're going to be around the corner they went through there really quickly we got them she's off the coast of california where drones are taking some incredible images of migrating whales as this technology becomes. more people we're going to see more research is using it on field tours. that's our team know it's do some science. pages welcome to techno on phil tours joined by marie to davison and dr crystal to worse no bigger and potentially more dangerous that's the best way to describe what's happening with the smoking alternatives known as the cigarettes or vapor that's an industry that seems to really be exploding i mean you're seeing it

everywhere and a part of me wonders if this might be because of some misinformation about maybe that's that's my sense in our daughter krystle dorothy you have your ph d. in the study so we've asked you to keep a tab on this there's a lot of academic research is being done on the safety of the use of these devices but it can't really keep up with a growing industry. i enjoy the taste of it and the harmful effects of what smoking does call them vapors or fathers are competitive cloud chasers all are welcome at crystal vapor one of thousands of vacant shops across the country since tecno 1st reported on the baiting phenomenon in 2013 the industry has taken off like wildfire revenue is estimated to reach 3500000000 dollars this year doubling since 2013 according to a recent poll 10 percent of all american adults are bathing that's an estimated

20000000 people when it comes to kids well conventional tobacco smoking among them is dropping to record lows east cigarettes are a growing concern that the centers for disease control between 20132014 alone we saw a tripling in use among us high school students to the point where it was about 13.5 percent of u.s. high school students had used these products within the past 30 days from the early general. cigarette lookalikes techno 1st reported on personal vaporizing devices known as mobs have gone high tech beings come a long way baby we've seen the shift move from pens and tanks at least culturally to what we call cloud trees and devices from mechanical mogs to basically box models what's going on right now it may sound confusing but the basic mechanics are pretty simple there's a battery powered out of my zip that heats up a liquid mixture known as juice entered into vapor which the user inhales. when we 1st met researcher i'm an equal humans should wrapped up a study that found harmful metal particulate in the vapor from earlier models of

east cigarettes following the evolution of the industry she's updating her study so the original study we had looked at a card a miser style cigarette and we had detected high amounts of 10 present in the card a miser parts do you still finding heavy metal particulate in the paper we're still finding yes but still a scary because it's going into people's lungs what happens to your lungs when those metal particles go in and lation of metal especially things like 10 can cause stenosis and that could constrict the wrong pills and you know the airways in the lungs across the hall at u.c. riverside they're studying one of those compounds researcher a lot of it is bogus to nicotine concentrations and refillable. in this case the solution tested is tennessee cured by red oak a fluid made by johnson creek enterprises and online seller of the liquids and accessories we order a bunch of and just run most of them just at the accuracy of the label and in this

case this is 18 micrograms per milliliter so this would be considered a high nicotine concentration so the test here is we'll see how much it's measuring from the speak and then we'll compare that to what's on the label and as you can see from our control it was a lot higher so we know for sure that it is nicotine and recent paper that we published we found out that this specific sample was 15 i pressed. went higher than it's advertised they will whoever bought this got way more than they bargained for yes they did techno asked johnson enterprises about its nicotine labeling discrepancy they offered this statement between 20112012 there was a noticeable improvement in our manufacturing process including in process controls and analytical methods for testing nicotine concentration with greater accuracy while the company's stated claims point to a step in the right direction the red oak sample that they manufactured with the 59 percent higher nicotine discrepancy was purchased for the u.c. riverside study online in february 2012 well within the range of johnson creek

stated internal improvements in controls and accuracy but they're not alone currently u.c. riverside is evaluating a new batch of liquids from a variety of vendors and polyphony results continue to suggest large discrepancies in nicotine labeling throughout the industry just based on all the research that we've done you never know what you're getting it could be higher nicotine contribution it could be lower and although lower my sound better that's going to mean that you need smoke more interesting what your buy is normally used to researchers are also concerned about the content of the hundreds of flavored liquids that fuel the number one seller is from animal this is a cereal fruit loops flavored with a little bit of milk. a lot of the slavers that are regarded as grass is generally regarded as safe that is a term that's given to flavoring products that can be ingested what's happening to these flavoring products when they're being aerosolized at these high temperatures

and inhaled into the long you have chemical reactions that can break them down into a lot more toxic chemicals known as carbon compounds prime example being formaldehyde that's a very common when everyone's heard of formaldehyde and everyone should know it isn't good so in head to head comparison versus conventional cigarette which one do you think is healthier my opinion i think they're both dangerous i think the narrative that most. people are missing is that the public health opponents to vapor have lumped in vapor with the evil tobacco folks that they fought you know back in the eighty's in the ninety's and so they've decided that this is the exact same thing cynthia is the executive director for the smoke free alternative trade association called safira they've been lobby group we need to dispel the idea that these products paper products are the same as combusted tobacco products because they're not so we need to look at any time that anyone is using

a vapor product they're not smoking and that's a win for everybody the z cigarettes they don't contain the $7000.00 plus chemicals that conventional cigarettes have and that's always a plus but on the flip side they do have their own set of compounds that you're being exposed to unfortunately we're going to have to wait for the long gemini studies but if i had to say what is more dangerous honestly i there to me that the food and drug administration which regulates tobacco is still reviewing vaporing regulations travis padgett has been smoking since high school today to cut down on tobacco use it was it was just kind of the different you might make it to microbiology major at u.c. riverside travis is babying for science participating in a study that measures his intake puff duration volume and frequency when you get out here you're going to have a science degree why not wait for science why now before we know if it's safe i mean it's either a vapor a smoke cigarettes and we already know cigarettes are about to roll the dice

exactly it's a roll of the dice some. of the people that are choosing a thing over conventional cigarettes are choosing the unknown over the know and they know that conventional cigarettes and give them cancer there's a chance that it's better and so they're rolling the dice with that but they're still gambling with their own house and sometimes adults are making more info. and decisions within you have all these kids right well absolutely i mean adolescents there's still in a stage of brain development they're not as capable as adults of making good decisions and they're uniquely 5th up to bullet to addiction and usually we've got regulations in place that help protect for specifically those kind of cases but here it's so new you know you know the regulations aren't they haven't kept up obviously that's a major concern all of the regulations of protections that we have developed for tobacco products conventional cigarettes are not there when it comes to day things will go as fascinating topic and i'm sure crystal you'll keep us up to date on this but coming up next marie to understand you when we're watching i did i got to go

whale watching using drones in the sky so a little bit like spying but it's a great way to observe whales that we normally wouldn't be able to see and we don't really disturb them at all. most times when you see images from a drone something is exploding usually devastation from the air these are the military drones in service around the world. closer to home in california they're also used for important peacetime missions like assisting firefighters by mapping out hot spots during raging wildfires and much has been reported about the use of drones especially when it comes to military applications drones may even become the delivery system for consumer goods but today off the coast of san simeon california researchers using drones like this one here behind me 1st spectacular use all in the name of science this is the peters walk of life station this is

a very unique piece of property because it sticks out into the migratory corridor or of the northbound gray whale cows and calves a picture perfect location for researchers to fly a science drone to get an unprecedented bird's eye view of what swims below right at it. but in the distance all right our mom was already without them for 22 years. perry man and a team from noah have been here from march until may counting and collecting data on great whales migrating north from the breeding grounds of mexico to the arctic a trip of 6800 miles this point is kind of a focal point for them and we're able to see them very very well they passed often within 100 meters of the beach so it's a great place to count animals great whales swim close to land as protection against their main predator killer whales even so it takes a sharp eye and strong binoculars to spot the northern migration once they do it's

go time for a one of a kind unmanned aircraft named mobley. to the rights to the right now move there in the middle of the frame the right keep on going out on the service economy of the frame good come down a little that has them going to the right as i'm underwater know a scientist and pilot john durban is tracking a mother and her calf from a distance of about 3 quarters of a mile out from where he stands john's wife and co researcher holly fernbach is under the towel that shades a control panel giving her a real time video feed that aids in guiding the flight so when they come up next i'm going to move out of them at picking out mark out at the very right should be perfect so now it's split 2nd timing for john to remotely trigger the camera to take high definition photographs of the whales i'm going to be around the corner they went through there really quickly we got there we did well the.

this is really it's all we have a flying a camera and we're trying to make inference about size and shape of whales by taking photographs of school photogrammetry so this is a camera and we want to get above the whales. the mobley was built by don the boy at a cost of $25000.00 it may look like a hobbyist stream project but in fact it's packed with many high tech systems to do science so it's called a house a car because it has 6 motors and 6 rotors if it's not being told what to do wants to see how we're going to be stable when we air. behind a finish and photos taken from the eye in the sky give scientists a better look at the overall health of the whales a female who has been eating a lot and she's fat her whip relative to her link will be different than

a female who hasn't eaten very much so we can take just those 2 measurements and with those 2 we can get an index of condition index of fat miss for that female peri min says this season many of the northbound lactating female gray whales observed appeared more robust than in previous years data that is important for many reasons will health give scientists a snapshot of the balancing act between food sources natural predators even climate change we're getting to the point now where we really can talk about how climate change in the arctic is impacting this population now there's less ice and it's thinner there's more photosynthesis going on in the wintertime because like can penetrate and what we want to do is kind of understand that dynamic what's going on . recently john durban and the know it's team took mobley to canada to study killer whales taken from 100 feet above this video the 1st of its kind give scientists

a clearer picture of the health of northern resident killer whales in these images the whale on the right appears robust and in good condition while the whale on the left is then and in poor health scientists believe this will later died because it was no longer spotted with its pod little guy. killer whales are important because they're competing with us fish we're trying to understand all the getting enough food as this technology becomes available to more people we're going to see more research is using it say for research say for the animals i think it's a win win. from an emotional perspective just being able to see these incredibly beautiful species out in their natural environment we'd never be able to do that and we don't have to disturb them to see them but in terms of the overarching story i mean a scientist you can collect data on 2 things what is and what's changing and it seems like this method allows them to collect data that's sort of speaking to both

of those objectives they're studying what is now and when things change we'll know yeah and i mean that also speaks to the importance of having these long term data sets right because you have to be able to establish a baseline which i think they're doing very well you know with 22 years worth of data and now with the changes of climate change you know that that's a really powerful 70 minutes to to get a sense of what's what's on the horizon. you are going to tell us about a unique sewer you took of a little unusual lab into tray here you know it's basically a lab full of trash and ford invited us to check out the ways that they're making the auto industry little bit greener so clearly a lot of environmental incentives here at play and you know obviously when you use recycled materials over new ones are going to be saving a little bit of money but they also found some new ways to solve some old problems using some very cool methods so saying look.

it's taken over a century but today car manufacturers are getting into high gear when it comes to going green from hydrogen fuel cell cars to electric plug ins and hybrids mileage is going up and with the least 10 percent vehicles environmental impact the assembly process manufacturing is going green to. companies. like toyota g.m. volkswagen ford and honda are all stepping up eco friendly methods with 0 waste factories diverting millions of pounds from landfills reusing water recycling sludge and going solar power and it's not just assembly take forward 85.