Even if mermaids aren’t real, they’ll likely feature in human stories for many years to come. Very few mythical creatures are found in so many diverse cultures, across so many years without changing.
SIM cards link accounts to handsets. They keep communications private. They store messages. Although small and simple, they are a big part of modern mobile phone systems.
When magma rises towards the surface gas bubbles start to form. Whether or not they can escape as the magma is rising affects how explosive the eruption will be.
If the insect wants to stay right in front of your nose, it must fly forwards just a little bit when the car is speeding up. But when the car is at constant speed, it only needs to hover.
The loud noise might be a warning that there is something falling nearby, or flying towards you. Our brain tells our eyes to quickly shut, to help protect them from any damage.
Many people think green snot means you are really sick, or that you need antibiotics. Not true. Green snot is actually a sign that our immune system is working and that we are getting better.
The pull created by a black hole is so strong that if you get too close to one – even if you are travelling away from it at the fastest speed it is possible to go – you will never be able escape.
Sunanda Creagh, The Conversation y Molly Glassey, The Conversation
If you’re looking for ways to keep kids occupied on road trips or at home, we’d love you to check out a podcast called Imagine This, a co-production between ABC KIDS listen and The Conversation.
A wormhole is like a tunnel connecting two places in space. They would be incredibly useful and are great for science-fiction stories.
The problem is we haven’t found any evidence of them existing.
The Big Bang created a cloud of dust and rocks that included a lot of rocks that were made of ice, like giant snowballs. That’s where some of the water came from.
Pretty much as soon as we understood what galaxies were, we realised they are all moving away from each other. And the ones that are further away are moving faster. In short, the universe is expanding.
People used to think that boy lions had big shaggy manes to protect their necks from being bitten or scratched during fights. But scientists soon realised this idea didn’t make much sense.