Ils tiennent accrochés entre eux grâce aux ligaments. The “stuff” you’re made of is matter, which has a counterpart called antimatter differing only in electrical charge.

Yet though incredibly complicated, through genetics we’re learning more and more about what causes it, how it spreads and getting better at treating and preventing it.

Questions Sciences. Now we have to put all that carbon back, or risk the consequences of a warming climate. What's the Difference Between Sasquatch and Bigfoot?

Comment un serpent peut-il sentir notre présence ?
22 Crazy Hypothetical Questions … Not a single disease, but a loose group of many hundreds of diseases, cancer has been around since the dinosaurs and, being caused by haywire genes, the risk is hardwired into all of us. Arts & Culture Informatique & Internet Insolite Monde & Société Nature & Écologie Santé & Beauté Sciences Sports & Loisirs. Car les effets magnétiques et l’électricité sont très liés : avec l’électricité, on peut faire bouger des aimants et avec des aimants qui bougent, on peut créer de l’électricité.

What If the Amazon Rainforest Is Completely Destroyed? Clearly nature has a subtle bias for matter otherwise you wouldn’t exist. Grâce à la chaleur du Soleil ! Questions Histoire. Our article gives you hypothetical questions to make you think, funny questions to add fun to any gathering, a list for a “What If?” Questions Game, and an additional list of what if questions to use any way you wish.

But scientists are still searching for a complete explanation of why we sleep and dream.

Toutes les actus . Pourquoi n’attrapons-nous pas deux fois la varicelle ? La lumière du soleil passe à travers mais elle réchauffe la surface des océans et des sols. What if You Were on an Elevator and the Cable Broke? We’re still not really sure. Our nearest star offers more than one possible solution. When you purchase through links on our site, we may earn an affiliate commission. louis, 7 ans. > Télécharge le lexique “Le coronavirus expliqué aux enfants”, > Découvre le sommaire du mois

Astronomers are closing in on the true identities of these unseen interlopers. The number of people on our planet has doubled to more than 7 billion since the 1960s and it is expected that by 2050 there will be at least 9 billion of us. Non, il n’y a pas d’air entre les atomes. Public key encryption – the heartbeat of internet commerce – uses prime numbers to fashion keys capable of locking away your sensitive information from prying eyes. The discoveries we’ve made so far – from bizarre fish such as the barreleye, with its transparent head, to a potential treatment for Alzheimer’s made by crustaceans – are a tiny fraction of the strange world hidden below the waves. Comment se forme le vent ? Subscribers to Sigmund Freud’s views believed dreams were expressions of unfulfilled wishes – often sexual – while others wonder whether dreams are anything but the random firings of a sleeping brain. Pour ta recherche, tape ton mot et appuie sur la touche « Entrée » ou sur la loupe, Coronavirus et gestes barrières expliqués aux enfants. Our drug pipeline has been sputtering for decades and we’ve been making the problem worse through overprescription and misuse of antibiotics – an estimated 80% of US antibiotics goes to boosting farm animal growth.

Sir Alexander Fleming’s Nobel prize-winning discovery led to medicines that fought some of the deadliest diseases and made surgery, transplants and chemotherapy possible. Nous avons répondu à 259 questions dans cette catégorie : Faut-il avoir peur des astéroïdes géocroiseurs ?

Exemple : si on me demande ma c…

Bonus.

Our best theories suggest that the big bang created equal amounts of the two, meaning all matter should have since encountered its antimatter counterpart, scuppering them both and leaving the universe awash with only energy. Conformément à la loi « Informatique et Libertés » du 6/01/1978 modifiée et au RGPD du 27/04/2016, elles peuvent donner lieu à l’exercice du droit d’accès, de rectification, d’effacement, d’opposition, à la portabilité des données et à la limitation des traitements ainsi qu’au sort des données après la mort à l’adresse suivante, en joignant une photocopie de votre pièce d’identité : Bayard (CNIL), TSA 10065, 59714 Lille Cedex 9. Maybe we can ship everyone off to Mars or start building apartment blocks underground.
But how do we do it?

Quand ils s’assemblent, ils forment toutes sortes de matières, celles des objets qui nous entourent mais aussi la matière de tous les êtres ... Parce qu’ils contiennent du fer ! What if you painted a room with nail polish? But we don’t know how long it will stay there, or what the risks might be. Après le bain , pourquoi la peau des doigts est ondulée ?

From the nature of the universe (that's if there is only one) to the purpose of dreams, there are lots of things we still don't know – but we might do soon. > Abonne-toi. And know this: up to half of all cancers – 3.7m a year – are preventable; quit smoking, drink and eat moderately, stay active, and avoid prolonged exposure to the midday sun. Combien de kilomètres fait le tour de la terre ?

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Clémence, 11 ans. Ils passent le prendre dans les poumons et le conduisent vers tous les organes. Mais d'être allé les explorer, d'avoir creusé en soi.

Perhaps it’s our culture – and its subsequent effect on our genes (and vice versa) – that makes the difference.

Thankfully, the advent of DNA sequencing is helping us discover antibiotics we never knew bacteria could produce.

Maïssne, 10 ans, Rejoignez la famille Bayard Jeunesse et recevez nos actualités et nos offres exclusives. Doing so might just break the internet. What’s down there? And since many diseases, such as diabetes and cancer, are diseases of ageing, treating ageing itself could be the key. It’s a question we don’t yet have the tools to answer. On les appelle les nocicepteurs. La rédaction d’Images Doc répond aux questions de lecteurs sur les sciences.

The longer we live, the more likely something might go wrong, in any number of ways. Our universe is a very unlikely place. Information about the device's operating system, Information about other identifiers assigned to the device, The IP address from which the device accesses a client's website or mobile application, Information about the user's activity on that device, including web pages and mobile apps visited or used, Information about the geographic location of the device when it accesses a website or mobile application.

What if You Only Ate One Type of Food for the Rest of Your Life? How did we get DNA? Comment se forment les marées ? Imali 9 ans.

Another idea is to use the energy in sunlight to split water into its component parts: oxygen, and hydrogen, which could provide a clean fuel for cars of the future.

Ta réponse sera en ligne dans quelques minutes. But if we want to keep on increasing the amount of computing power we carry around in our pockets, how are we going to do it?

What did the first cells look like?

Apolline, 9 ans. Ces informations sont destinées au groupe Bayard, auquel Bayard Presse appartient. Some say life began in hot pools near volcanoes, others that it was kick-started by meteorites hitting the sea.

Celles-ci, vous pouvez vraiment vous pencher dessus. C’est quoi une aurore boréale ? Except that general relativity and quantum physics have never been the happiest of bedfellows – for decades they have withstood all attempts to unify them. Le plus grand os est dans la cuisse, c’est le fémur. The fact you can shop safely on the internet is thanks to prime numbers – those digits that can only be divided by themselves and one. The hope is that these solutions can meet our energy needs. Infrasound and Paranormal Activity: Are They Connected?

And with Japan aiming to have robotic aides caring for its elderly by 2025, we’re thinking hard about it now.

In 1960, Don Walsh and Jacques Piccard travelled seven miles down, to the deepest part of the ocean, in search of answers. Carmen, 9 ans, Pourquoi, avant, on maltraitait ceux qui ont la peau noire ?

Atoms, which form everything we see around us, only account for a measly 5%.

Pourquoi la mer fait de la mousse quand il y a des vagues ? Clotilde, 12 ans. What if You Really Ate 50 Eggs Like in 'Cool Hand Luke'?

Perhaps not. Researchers are sifting data from experiments like the Large Hadron Collider trying to understand why, with supersymmetry and neutrinos the two leading contenders. Thought Experiment: What If We Stopped Walking Upright? A lot of the things we once thought distinguishing about us – language, tool-use, recognising yourself in the mirror – are seen in other animals. Yet this legacy is in danger – in Europe around 25,000 people die each year of multidrug-resistant bacteria. You really shouldn’t be here.

Lucie, 8 ans.

For the past couple of hundred years, we’ve been filling the atmosphere with carbon dioxide – unleashing it by burning fossil fuels that once locked away carbon below the Earth’s surface. Pour plus d’informations, nous vous renvoyons aux dispositions de notre Politique de confidentialité sur le site groupebayard.com.

Et dans toutes les usines qui produisent ... On appelle cela l’écume de mer. These may sound like sci-fi solutions, but we might have to start taking them more seriously. Scientists think that cooking and our mastery of fire may have helped us gain big brains. Les atomes sont les briques essentielles de la matière. Would Psychic Powers Really Cause a Nosebleed?

Here are 10 of the best deep what if questions to ask: 45.

There are only so many components you can cram on to a computer chip. Scientists are considering new materials, such as atomically thin carbon – graphene – as well as new systems, such as quantum computing. De quoi sont faites les étoiles ? Does Marie Antoinette Still Roam the Halls of Versailles? The real question is whether you’d leave a robotic butler alone in the house with your granny. What if you never aged?