All set for Sigma Run

February 10, 2020

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first_imgThe 18th staging of the Sagicor Sigma Corporate Run will bring New Kingston alive this morning when more than 20,000 runners, walkers and wheelchair participants will turn out in support of the event’s 2016 charities: Jamaica Cancer Society, Black River Hospital’s Paediatric Unit and children with cancer across the island.The 5K road race has maintained its focus to unite Jamaicans to raise funds for one cause – charity. While numerous child and health-care facilities have benefited from over $160 million raised in its history, the 2016 charities have seen the largest monetary target yet – $50m.”We continue to welcome donations as we must ensure that the beneficiaries receive the necessary and life saving equipment and supplies,” Ingrid Card, vice-president of group marketing at Sagicor, said ahead of today’s event.Competitors will participate in a 6:45 a.m. warm-up session in Emancipation Park with Karelle Ashley of Jamfit, while comedian Elva Ruddock will take the reins on Knutsford Boulevard at the start line. A 7:27 a.m. and 7:30 a.m. start time has been set for wheelchair and run categories, respectively. The walk segment will commence approximately 15 minutes after.Participants have been urged to plan to arrive in New Kingston, well ahead of the 7:30 a.m. start time to avoid road closures as well as to park and warm up for what is now largest road race in the Caribbean.last_img read more


More Impacts on Crater Count Dating

December 19, 2019

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first_imgPlanetary scientists have relied on crater counts to estimate the surface age of a planet or moon.  The more craters, the older the surface.  This method has recently come under closer scrutiny (see 10/20/2005) because of the phenomenon of secondary cratering.    A simplistic look at a crater-scarred planet or moon might lead one to assume a ratio of one impactor to one crater.  Planetary scientists have been realizing, however, that a big enough rock can produce many craters.  Another paper on this subject was published in Icarus this month.1  A team of Russian and American planetologists announced three findings from studies of Mars:Small clusters:  Some impactors break up in the atmosphere and produce small clusters of craters 100 to 300 meters wide, each pockmark a few tens of meters in diameter.  The breakup of weak cometary bodies on entry through the Martian atmosphere could be responsible for some of these small clusters.Large clusters:  The team identified a second population of larger clusters, distinct from the small clusters.  Their models indicated that one giant impact can launch numerous fragments as big as hundreds of meters across.  Some fragments can be ejected above escape velocity, but many will remain and fall back to the planet.  On Mars, the weakened fragments tend to break up in the atmosphere into sizes 5 to 50 meters, which is why clusters with similar size distributions are not seen on our airless moon.    Secondaries can often be identified along rays from the primary crater, but not always.  The fragments can travel long distances, flying through the atmosphere for more than an hour, “making it difficult to identify the parent crater.”  The authors explained that for fragments ejected from a primary impact, “launch at 3 km/s can distribute fragments over much of a hemisphere, and launch at 4 km/s can distribute fragments over most of Mars….”  Escape velocity on Mars is 5 km/s.Martian meteorites:  The meteorites found on Earth that originated on Mars appear to require impactors 3-7 km across.  An impactor hitting at an oblique angle can produce jets nearly parallel to the surface capable of accelerating surface rocks to escape velocity.  This implies that many other fragments fail to escape.  “Clearly, if fragmenting debris is lofted to escape velocity in order to produce martian meteorites … on Earth, then other debris is lofted to barely suborbital speeds and secondary impact pits must exist not just in near-primary swarms, but also in near-random positions scattered around Mars.”The authors did not comment specifically on the implications of their findings on the crater-count dating method.  They worked within the standard Martian timescale with its three periods, Noachian (3.8 to 3.5 billion years ago),2 Hesperian (3.5 to 1.8 billion years ago) and Amazonian (1.8 billion years to the present): e.g., “We conclude that most of the clusters discussed here probably formed in the last half of martian time, not during the Noachian era.  For this reason, we suspect they formed under essentially present-day, low-pressure atmospheric conditions.”  The degree of uncertainty in dating the clusters, however, was evident in the following paragraph:Further constraints are possible, from crater formation rate information.  Barlow and Osborne (2001) find most clusters on Noachian and Hesperian terrain, but some of our clusters, such as the one on Meridiani Planum (Fig.  4) and others on Olympus Mons, are found on geologically young surfaces.  This implies cluster formation within the last few hundred Myr, possibly within the last 20 Myr in the case of the sparsely cratered surface of Meridiani Planum, which may have been exhumed within the last tens of Myr (based on paucity of small sharp craters; [Hartmann et al., 2001] and [Hartmann, 2005]).  These results suggest clusters accumulating on surfaces throughout martian history.  Note that it is plausible that many young clusters on Mars might be products of a single large impact.Yet could these age estimates themselves be undermined by the findings of the paper?  If crater-counting methods were used in establishing the commonly-accepted geological periods, how can they be considered reliable now, considering that a single large impact can produce secondaries at random locations across the whole planet?    The authors hinted at the only logical answer to these questions after discussing various models for the fragmentation of incoming bodies: “All these assumptions suffer from limitations.”  Later, “Precise numbers of craters, their sizes and displacement are dependent on assumptions used,” they said.  As a matter of fact, the words assume and assumption appeared 19 times in the paper.1Popova, Hartmann, Nemtchinov, Richardson and Berman, “Crater clusters on Mars: Shedding light on martian ejecta launch conditions,” Icarus Volume 190, Issue 1, September 2007, Pages 50-73, doi:10.1016/j.icarus.2007.02.022.2The Noachian epoch, after the prominent Martian region Noachis Terra (which means “Land of Noah”) was named because of the presumption that Mars was warm and wet early in its history.  This assumption was called into question last week (see 09/24/2007, bullet 2).Despite their rigorous and admirable work of calculating and estimating the physical effects of impacting bodies on Mars, the authors could not think outside the box.  Their own work casts severe doubt on the ability to use crater counts as a dating method.  In principle, if one impact can produce ten million secondaries scattered around the whole planet (see 10/20/2005), there is no way to know how old the Martian surface is.  If anything, one would think the whole planet would have been saturated with craters in short order, hinting that the surface might be young.  And think about it: we’ve already seen several global dust storms in the 33 years since the first Martian orbiter.  How much weathering of craters would be expected in tens of millions of years?  And why is bedrock still clean-swept in large areas on Mars? (06/01/2005).    Because these scientists began their modeling with undaunted faith in the Age of the Solar System (A.S.S.), a figure (4.5 billion years) that, according to the Law of the Needs of the Darwins cannot be altered, they had to make it all work within their mythical paradigm.  Their crater cluster formation model must fit within the scheme of imaginary Noachian, Hesperian and Amazonian epochs, even though their own work undermines the assumptions that went into making the scheme in the first place (for other problems with the current scheme, see Astrobiology Magazine).  What’s in a name?  Would calling them the Washingtonian, Lincolnian and Clintonian epochs make Mars blink an eye?  Let the discerning mind understand that the fancy charts of geological time scales on Mars and Earth are human impositions on the data – not inevitable products of the observations themselves.(Visited 18 times, 1 visits today)FacebookTwitterPinterestSave分享0last_img read more


Women who bite the dust

December 18, 2019

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first_imgFrom left, Angela Shields and StefanieBotha are the only all-femalerally racing team in South Africa for 2011. The team competes in a Toyota RunX S1600. Shields and Botha in their racing kit.(Images: Nicky Rehbock)MEDIA CONTACTS • Lizette StokesJenni Newman Public Relations+27 11 506 7354RELATED ARTICLES• Electric motorsport in SA in 2012• SA women in the spotlight• World’s first hybrid sports car in SA• SA’s women power ahead• SA’s auto industry to turn greenNicky RehbockSouth Africans Stefanie Botha and Angela Shields have shattered all stereotypes by competing as the only all-female rally racing crew in the country for 2011, showing they’re every bit as skilful and capable as their male counterparts.The two are currently competing in the eight-round 2011 South African Rally Championship and are one of four crews belonging to Team Total, the country’s largest privateer rally squad.This means Team Total’s drivers own their rally cars and do all the maintenance themselves. Factory crews, such as the Castrol Team Toyota, compete in vehicles fully prepared, built and maintained by the company sponsoring them.Botha and Shields, both in their 20s, say it helps being best friends, as they have to trust each other completely during a rally. Shields is the co-driver, or navigator, and Botha takes the wheel.“Stefanie and I understand each other and have a huge amount of respect for each other. I don’t think we have an edge over the other teams because we are women, we have to work just as hard as the others,” Shields says.Botha admits that it does get heated at times, as they operate under extremely stressful conditions: “But luckily we trust each other completely – this is the most important aspect of a rally team. I am driving ‘blind’ and have to trust each call she gives me and drive accordingly. Angela also has to trust me to get us around each corner and not start panicking.”When push comes to shoveAnd when it comes to the maintenance and mechanics of their Toyota RunX S1600, Botha and Shields take it in their stride.“Unfortunately we do not have all the technical knowledge or physical strength when something goes wrong, but sometimes we have to change wheels or get stuck and have to push the car out,” Botha says.During a race the crew is only allowed to service their vehicle in a designated service park, which is usually placed every second or third stage during a competition. A typical national rally is held over two days and consists of between nine and 13 stages over various surfaces and terrain, covering a total of about 180km. A stage can be anything between 2km and 60km.During servicing, the technical team changes the car’s tyres if necessary, puts in petrol and attends to major mechanical work.“But if anything breaks in between, we have to fix it ourselves,” says Botha.“We are not all that clued-up, but at least know the basics like how to change tyres, put water back in if the car overheated and get the fan going. We help to prepare the car whenever we can so we keep learning. Of course we get gawked at whenever we have the bonnet open and have our hands in the engine bay, getting to the service bay all oily and muddy,” she adds.Made for speedRallying runs in Botha’s blood, having attended her first event when she was just two weeks old.“My dad has been racing and rallying ever since I can remember. It’s always been a family activity. My grandmother would not miss a rally and my mom would make sandwiches and bring coffee and (in later years) my sister, my friends and I cheered him on with all our might. Speed has always been such a part of my daily life, I just can’t imagine it being otherwise. I cannot remember if I ever specifically decided I wanted to be a rally driver. I just always knew.”It was this sense of conviction that saw Botha joining her dad in a rally team when she was just 15 – long before she had her driver’s licence.“When I started navigating at 15, there was a fight with the motorsport controlling body as they didn’t want to allow this at first. I enjoyed the sensation of sliding around corners so much I used to forget reading the instructions, but my dad helped me a lot. I guess my bum was made for the driver’s seat and not the navigator’s.”Shields is more of a newcomer and got her first taste of rallying in 2009: “I went for a ‘hot seat’ experience with a friend and I was blown away by the speed and adrenaline. I immediately knew that I wanted to be a navigator.”Shields then contacted Leon Botha, CEO of RallyStar Motorsport Academy near Bapsfontein in Gauteng, and signed up for a navigation course. “I had a day of theory, learning what all the different symbols in the route notes meant, how to read the notes and change my tone of voice for different calls. Then I had a few practical sessions reading for a trained rally driver. I navigated for a good friend in the 2010 RallyStar Sprint Series and we came second overall.”Despite their success in the field, they still have to deal with prejudice for being women in a male-dominated environment.“It is very challenging to convince people to see me as a rally driver, and not as a female rally driver and to give me a chance to make my mistakes and build up experience. I have heard many comments like ‘typical female driver never in the right gear’ – after having a broken gearbox with only one gear – or ‘she drives well for a girl’. I don’t have to reply on these. I know what I am capable of – we just have to prove it,” Botha says.Shields adds that she sometimes has to give physical proof to those who doubt her claims: “On many occasions I have had to show people photos to get them to believe that we’re an all-female team in motorsport. If I had to say something to these individuals it would be ‘I can do anything you can do and probably better’.”Between ripping up the dirt and challenging preconceptions in rally circles, the two friends work hard at their day-time jobs. Botha is a graphic designer and is currently opening up her own photographic studio in Middelburg, Mpumalanga, and Shields works as an IT support consultant for a multinational software company.last_img read more


Tsnomore Long Silky to Grey Straight Ombre Synthetic Wig – Very happy with this product

December 18, 2019

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first_imgIs that the entrance centre parting will make it glimpse really much like a wig i have to use a hair band. Truly beautiful sensation wig, my challenge with it, is that the front centre parting tends to make it glimpse incredibly a great deal like a wig i have to use a hair band to hide the front.Like it appears to be genuinely good feels great not heavy xx.Really wonderful for the price would definitely advocate shades a small. Incredibly nice for the selling price would surely advocate shades a minor but for the selling price i would not complain and the element in could be much better but then again for the selling price its good ??????.Over all very synthetic, not the same length but good for pictures or cosplay.Great quality for the priceWas great. It could be a little thicker so you Hair colour and feel is lovely. The parting is Great for short term useVery happy with this product Seems to be seriously great on, but the parting is really white and plastic looking. I experienced to produce a facet parting and comb the hair around to the side. It seemed fabulous for a although. Of class it didn’t last as well long- synthetic, and top quality is just ok. But for a a person-off event or a night out, a great wig.Parting @ leading a bit wrong seeking.I really like this wig, the only factor is the white patch rite on the leading at the front,, would make it ovs it can be a wig, aside from dat it is lovely also sent following working day.Great wig, thick, lots, very good high-quality hair, combs very well with out knotting, comfortable to don, all the things is fantastic .But only factor it hasn’t got are maintain in clips so it stays on your cap.Attractive wig, had lots of compliments on it and people imagined it was my authentic hair.Love it arrived when mentioned terrific good quality and colour match best.Hair colour and feel is beautiful. Hair colour and sense is wonderful. The parting is white plastic and bery bulking in which the plastic has been folded which is this sort of a shame as it could be attractive.Tsnomore long silky black to qingdao. Funky hair adore it and really like carrying, great value for income.Good wig for the rate, individuals even asked me when did i dye my hair,lol.The wig is so awesome and comfortable and long, which i really like :d downfall?. The parting is white, just use concealer/foundation to match it to your skin tone, other than that it can be so good, i get hundreds of compliments :d.Okay, but the scalp component seems to be definitely phony, can only truly wear this with a hat.In excess of all pretty synthetic, not the same length but good for photos or cosplay. . This isn’t horrible excellent but it is not a little something you could have on every day and get absent with it. I have not attempted to curl this but i wouldn’t dare. It is 100% synthetic and i am quite absolutely sure this will burn off. It’s not as long as the photo shows either, i’ve connected a photograph to demonstrate the genuine length. The picture can make it look a lot more luscious than it is on the other hand, about all if you just want to use this for pics or cosplay then it truly is excellent. It has no clips to hold it in area even though the double sided tape may well keep it in spot for cosplay. The good news is i in no way prepared to dress in it out of the household any way.The greatest wig i go ugh so significantly. I genuinely enjoy this wig , the ideal wig i acquired so considerably.Very good things as pictured wonderful come to feel organic color. Good stuffas picturedgreat sense all-natural color.It truly is a minor shorter than the image but other than that a good high-quality wig.Long,tender,a little bit much too shiny on top and slighty too thin. But i afenit operate an it appears pretty superior. Excellent decision for cosplaysband partys.It could be a minimal thicker so you. It could be a tiny thicker so you can design it far more and was a minimal difficult to get on, but apart from that it’s well worth the revenue.It could be a little bit extra thicker and that the parting was not so faux hunting, but it is worth the funds.Like this does not seem bogus and had masses of compliments will purchase once more.last_img read more


Cab Cam with Navy Veterans Peggy and Sid Vigil

December 17, 2019

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first_imgShare Facebook Twitter Google + LinkedIn Pinterest On this Veterans Day Bart Johnson visits with Navy Veterans Peggy and Sid Vigil who found a second career in farming after retiring from a career in the US Navy. Hear about the opportunity Delbert and Barb Crook offered Peggy and Sid to take over their farming operation and the obstacles they overcame to make it work.last_img


16 Free Circle Transitions for Video Editors

December 12, 2019

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first_imgGive your footage a bold burst of life and motion with this collection of sixteen FREE circle transitions.It’s easier than ever to give your footage a customized look with these sixteen FREE circle transitions for your next video editing project. These HD circle transitions can be used for anything from general video transitions to logo reveals. Here’s a quick demo of the circle transitions in action (featuring “We’re Taking Off” from the PremiumBeat royalty free music library).How to Use the Free Circle TransitionsWhile these circle transitions can be used in any video editing software, the easiest way to utilize them is in After Effects. This quick tutorial shows us how to use these transitions (and you can follow along with the steps below).Step 1: Layer your ClipsSimply place the first clip over your second clip. If you don’t get the order right, the transition won’t work correctly.Step 2: Add the TransitionPlace your desired transition footage on top of the first clip. Move the clip all the way to the very end of the footage.Step 3: Set the Luma MatteClick on the small box next to your blending modes and set the track matte to Luma Matte Inverted. This will activate the transition. You can now preview and export your footage.If you want to download these free circle transitions, simply click the download link below. Your file will be downloaded as a .zip file that can be easily uncompressed.These free assets are available to use in any commercial project. They are not to be redistributed or resold. DOWNLOAD 16 FREE CIRCLE TRANSITIONSDo you use shape transitions in your work? Share your experience in the comments below.last_img read more