Jack loves a shiny new gadget and for week 27 of the CountUp we're reporting that we've taken the opportunity of a brand new book on the horizon to switch to a brand new way of keeping in touch with the people who follow our blog. We've switched to follow.it which is the shiny new gizmo now at the top right hand side of the page. Turns out that follow.it is for both blog readers and blog writers so do check out the link and see what's there for you.
For Week 26 (of the countUP) the link below will give you a line up of dinosaurs by size. Not that they could ever have lined up in this way as they didn't all exist at the same time.
By the time the later dinosaurs roamed the Earth, the early ones were no more than ancient fossils.
In fact, the gap between the existence of Tyranosaurus Rex and Stegosaurus is greater than the gap between Tyranosaurus Rex and the iPhone.
Image by AndreasIken from Pixabay
For week 25 (of the countUP) here is a neat bit of horsey maths from one of my favourite YouTubers.
I can’t think of a reason why you would need to work out
which are the three fastest out of 25 horses, but maybe you can. And anyway,
let’s suppose that’s the case.
OK, you have your 25 horses and you take them to a racetrack.
Hey, that’s a MASSIVE lorry you have. Does it need a special licence to drive
it?
The racetrack owner says, ‘Please use my racetrack but only
5 horses at a time please. Oh and I need it back, so be as quick as you can.’
Right then! 25 horses to be raced 5 at a time. What’s the
smallest number of races it will take? Go!
Just a bit of fun for week 24. Click the link for a 10 minute peek into the world of Tommy Turvey and Pokerjoe.
The first draft of Horse of the Same Colour is getting close to complete and although neither Megan nor Amy gets up to any of the antics shown, some of the things that happen come close.
Image by Clker-Free-Vector-Images
Have you ever been in a group of people and discovered that someone else shares your birthday? Does that seem like an amazing coincidence?
Not so, it’s just chance.
In any group of 23 people, there is a 50-50 chance
that two of them will have the same birthday. Click the link below for an explanation of why.
https://betterexplained.com/articles/understanding-the-birthday-paradox/
Week 23 of the countUP
Just for fun this week here are 22 horse animations:
As this is week 21 of the count up *and* it happens to be the 21st of the month, here is a problem involving the number 21:-
9 + 10 = 21
Is that impossible?
Turns out it’s not.
In fact there are many ways to make it true, but they involve dealing in number bases. So if number bases are not your thing, forget that side of things, and just enjoy this video from Presh Talwalker for its fascinating insight into the history of numbers.
And this is why we're doing a countUP