Human blood vessels

We learned today that there are approx 100,000km of blood vessels in an average human adult's body! Here's the question: If you laid all those blood vessels end-to-end, how many times would they go around the Equator?

Pasteurization

What is pasteurisation of milk?
Where did the name come from?

Maglev Trains

There is a train in Japan called the Maglev which runs on Magnetic Energy. Can anyone find out how it works?

Greenwich Meantime

We were learning about time zones in Maths and Anselm asked "Who was the first to invent time zones and who decided that Greenwich, London should be 0 degrees Longitude?"

Most popular religion?

We were talking about world religions today and Ciara asked which church has more members, Catholic or Protestant? I'm also asking which is the most popular religion in the world

Einstein's Theory of Relativity explained

Yet Another Science Question!

Andrew did an experiment using yeast, sugar and boiling water in a plastic bottle. We placed a balloon on top of the bottle and the balloon was supposed to inflate after one hour, but it didn't and we are wondering why not? (Andrew did the experiment once before and it did inflate that time).



Theory of Relativity

Would anyone be able to explain in simple language what  Einstein's Theory of Relativity is about?

Another scientific question

Sean's experiment with the balancing fork is baffling us all. How is this possible?



Scientific question

We did this experiment in science and were curious about the results:

In this experiment, we inflated a balloon using vinegar and baking soda. Then we left it to see what would happen. After a few days the balloon deflated and then got sucked into the bottle (see above). We want to know why this happened? (Anselm is calling it "exflation")





Cavan Rail

In geography we were learning about Ireland's rail network. We discovered that there used to be a railway station in Cavan. Can anyone tell us where exactly the railway station was, and where the track went to after Cavan?

Roger Casement's boat?

What was the name of the boat that the Irish Volunteers were using to smuggle arms into Ireland before the 1916 Rising? It was intercepted and scuppered by the Bristish off the coast of County Kerry 3 days before the Rising was due to take place.

This is a photo of divers inspecting the wreck of Roger Casement's boat.