world of electronics

Fluor : ce poison dans le dentifrice et l’eau ! SANTÉ   BY MICHEL DE CHANGER GAGNER   ON MARCH 18, 2017   0 COMMENTS Eh oui ! Le fluor est un poison. Non, vous ne rêvez pas. Il est pourtant donné aux nourrissons et nos dentifrices en sont bourrés. L’eau du robinet et le sel sont souvent fluorés. Alors, de qui se moque-t-on ? Tout de suite plus de détails. Dentifrice, eau, sel, … Du fluor, on en trouve dans : les suppléments pour bébés contre les caries les dentifrices l’eau du robinet ou certaines eaux minérales le sel fluoré la viande industriellement séparée (à cause des petits morceaux d’os) le revêtement des poêles anti adhésives… Or de plus en plus de voix s’élèvent. Le fluor est toxique. Lutter contre les caries Initialement le fluor sert à lutter contre les caries en reminéralisant les dents. En effet, la  fluorapatite  constituerait une partie de l’émail des dents. Plus l’émail est résistant moins la carie s’installe. Mais il semblerait agir

En théorie, un sondage… Normalement, un sondage c’est une pratique qui sert à déterminer les tendances d’une population à partir d’un échantillon REPRÉSENTATIF. Et c’est une pratique liée à la discipline des statistiques et probabilités. Une discipline tout à fait mathématique. Et donc scientifique. Sondages pas si représentatifs que cela… Pourtant, voici ce que dit la vidéo. Dans la réalité, les panels sont soit des clubs fermés, soit des clubs très recherchés par les fans de cadeaux. En effet, certains instituts offrent des cadeaux pour fidéliser. Les sondages ne doivent pas être rémunérés. C’est juste une fidélisation. Donc, on imagine mal un chef d’entreprise s’inscrire. Et par conséquent, rares sont les panels réellement représentatifs d’après la vidéo. Pour être représentatif un panel devrait calquer exactement la structure de la société. Il existe sans doute des panels bien constitués. Mais ce doit être difficile à mettre en place. Des conflits d’intérê

LG X Power 2: Hands-on with an absolute battery beast A full day of battery life is pretty much the holy grail of the smartphone world, where intense use sucks down battery reserves faster than a kid with a juice box. But two days of battery life? That's a pretty rare feat. LG's X Power 2, a followup to last year's X Power, claims it can go two days on a single charge, driven by a high-capacity battery. It clocks in at 4,500mAh, compared to the X Power's 4,100mAh battery pack. And no, you can't remove it. LG claims it can play 15 hours of continuous video, and charge up to 50 percent of its battery in an hour. The whole charge should take two hours total. Like most other phones, it uses Quick Charge technology. But what does "two days" mean? A full 48 hours of use or more like 16 to 20? We won't know for sure until we test it ourselves. We did get a chance to see the X Power 2 in person. While it's got mostly midrange specs, the phone

Nokia 3 and 5 bring up the middle of its new Android phone lineup Nokia is back in the game and expanding its range. The legendary Finnish company probably made your first phone, but its dominance came to an abrupt end in 2014 when it sold its entire phone business to Microsoft. Fortunately for fans, a bunch of former Nokia employees have formed a company called HMD Global to make Nokia phones anew. They began with the Nokia 6, which is now joined by the mid-range Nokia 3 and Nokia 5. The Nokia 5 is a 5.2-inch mid-range model with an octa-core Qualcomm Snapdragon processor. The 3 is a 5-inch phone with a quad-core chip. Both phones are loaded with pure Android -- and nothing else. Nokia has added no extra bloatware to the Android Nougat firmware, which means the company can promise they stay "pure, secure and up to date". Nokia says it will also provide monthly security updates so your phone stays healthy. The new phones are set to be released in spring this ye

Nokia 3 and 5 bring up the middle of its new Android phone lineup

is a $60 phone too cheap to be good? And is it so cheap that you won't care? That's what I wanted to know about the ad-supported Amazon Prime version of Blu's R1 HD phone, which knocks down the original retail price -- originally $110 for the 16GB model and $100 for 8GB version -- by showing you advertisements on the phone's lock screen. It'd be a tempting price for Prime members who cast a blind eye to ads with one exception: the R1 HD isn't very good. Its camera is mediocre, its performance is inconsistent, and call volume on audio speaker is too low to listen to comfortably. Sixty dollars (or $50 for the 8GB version with ads), however, is cheap enough to justify buying the phone for a kid, or an overseas guest or maybe even as an emergency backup. You seriously can't find that low a price on any modern smartphone. But for a little more, you have better, more reliable budget options, like the Samsung Galaxy J3 ($110 to $180, depending on the carri

HTC's new Desire: Making a higher-end phone cost less. A lot less (hands-on) If "budget phone" conjures images of a clunky plastic handset with blah-blah specs, you'll want to chuck that notion now. HTC is on a mission to deliver flagship-level features in a phone that costs less than half of many of today's premium handsets. HTC on Tuesday announced the midrange Desire 10 Pro, alongside the far more entry-level (and cheaper!) Desire 10 Lifestyle. For now, both phones will sell only in Europe, with the Desire 10 Pro arriving at the beginning of November. We don't know for how much, although the company confirmed it would be less than the flagship  HTC 10 , which costs $699, £569 and AU$1,099. You'll be able to buy the Desire 10 Lifestyle at the end of September for £249, which converts to about $325 and AU$430. The Pro is aimed at consumers who want high-end performance at a midrange price, while the Lifestyle is for those on a set budget. The