The Science of SantaRead More
At the most wonderful time of the year you can be bombarded with hard to answer questions from inquisitive children, like “how does Santa get round the world in one night?” These questions tend to get brushed away with the same answer…by magic.
We have done the maths and worked out the answers to some of the most awkward questions you could be asked about how Santa manages his task!
“How many stops does Santa have to make?”
Santa has a huge task ahead of him this Christmas Eve, assuming that all children get 8 hours of sleep, he has 32 hours (24+8) to deliver all the presents.
Travelling from east to west his first stop will be in the earliest time zone of Samoa and New Zealand and the last in the far west United States at Baker Island1.
Most religions and cultures have a celebration of gift giving at this time of year but Santa Claus traditionally only delivers to Christian households.
Of the 2.2 billion2 children in the world 32% identify as Christian and so Santa will have to visit approximately 640 million children3.
If there are approximately 3 children per household, spread evenly across the globe, he will have to stop at 213 million households each 2.39km apart.
“How fast would he have to travel?”
To make all the stops in 32 hours Santa will make 1849 stops per second and be travelling at an impressive 4419 km per second. That is 400 times the speed of the Voyager 1 probe and 1.47% of the speed of light.
“How heavy is his sleigh?”
Assuming every child gets an Olaf toy4 (from this year’s most popular children’s film, Frozen), the presents will weigh 217,600 metric tonnes when stationary.
That is nearly 1000 times a Boeing 747 at full capacity!
However, Einstein’s theory of relativity indicates that when relative mass increases with speed. The apparent weight of Santa’s sleigh to a stationary observer would increase to 217,623.64 metric tonnes.
“How much would Santa have to spend on presents?”
An Olaf toy4 this year is £18 new so Santa will have to spend a grand total of £11,520,000,000. This is equivalent to the GDP of Honduras5.
So overall Santa visits millions of houses, travelling incredibly fast, pulling a very heavy sleigh and spends the equivalent of a small country on presents.
If anyone asks you how….. it’s by magic !
Tweet me your answers to difficult Christmas questions @GabyAtNotch!
100 years in…Technology Part 4Read More
This is the last part of “100 years in Technology”, and I hope you enjoyed the series. If you have not seen the other 3 parts of the series then please check out the link below.
The Face of Facebook
In February 2004, Mark Zuckerberg launched “the Facebook”, as it was originally known; the name taken from the sheets of paper distributed to college freshman, profiling students and staff. The main intention for the Facebook was to create personal profiles for all students, enabling you to search for students’ personal profiles to find out information about them.Within 24 hours, 1200 Harvard students had signed up and after one month over half of the undergraduate population had a profile on ‘the Facebook’.
The network was promptly extended to other Boston universities, the Ivy League and eventually all US universities. It became Facebook.com in August 2005 after the address was purchased for $200,000. Facebook spread to most universities and schools worldwide. It soon changed so that anyone with a registered email address could make a Facebook account for free. It’s now considered as an online social networking service with 500 million people globally using Facebook. According to Facebook statistics, you have a 1/9 chance of finding anyone on Facebook. It’s currently worth $200 billion, and advertises for over 1 million companies at the moment with roughly 25 million active small business pages.
Facebook is currently the most visited website in the world right now, based on linking root domains. It has many benefits such as: sharing and finding information, chatting to old/new friends, business promotion and entertainment.
It’s basically a “one-stop shop” for people of all ages to communicate and keep up with the latest developments in their social circles, personal interests and entertainment.
This simple, yet genius invention, changed the way that companies advertise and promote their products and services. It has allowed advertisers to get broader exposure to wider audiences, creating a greater chance for more customers and brand recognition.
Here is an interesting fact – on average Facebook users that have a smartphone check their Facebook 14 times a day.
What has been your favourite technology invention of the past decade? Tweet me @AadilAtNotch.