Tag «science»

Seagrass: Life in the Underwater Meadows

Seagrass: Life in the Underwater Meadows

(Mary O’Connor) Seagrasses are declining worldwide at rates faster than coral reefs and rainforests, but we do overlook them. We don’t talk about seagrass loss nearly enough. Seagrass is a land-based plant that colonized the ocean. (Margot Hessing-Lewis) The blades can be over a meter tall, so when you dive down or snorkel down into …

Dissolved Oxygen

Imagine a world where we weren’t surrounded by air. Without the oxygen in the air that we breathe, we wouldn’t survive very long. But what about animals underwater? They need oxygen too. Where do they get it? The answer is from the water because water actually also contains dissolved oxygen. Dissolved oxygen is just what …

What if Seawater becomes Freshwater? | #aumsum

What if Seawater becomes Freshwater? | #aumsum

It’s AumSum Time. What if all the Seawater Becomes Freshwater? Nooo. What if all the seawater becomes chocolate milkshake? Ohh listen. First of all, the biggest advantage will be that. It will solve the water crisis all over the world. However, there will be quite a number of disadvantages. Firstly, most of the fishes will …

Mixing Dry Ice with Molten Salt

3…2…1… Oh dear!! hey guys. I’m Nate welcome back to the backyard today. We’ve got a fun experiment that we’re going to try Thanks to the suggestion of Youtube user Robert Vipperman! Robert wanted to know what would happen if we mixed molten salt with you to the liquid nitrogen or dry ice well today …

Insect-sized robot takes flight: RoboBee X-Wing

Insect-sized robot takes flight: RoboBee X-Wing

Insects are true masters of flight – small, lightweight and highly manoeuvrable. Scientists have been taking inspiration from our six-legged friends to try and create flying robots of the same size. But it’s proven difficult because when you get down to the insects’ scale, it’s hard to generate enough thrust to carry your own power …