Top 5: Places to visit with a Harry Potter theme Visit the magical Alnwick Castle iStockphoto / Thinkstock The final Harry Potter film Harry Potter and the Deathly Hallows Part II premieres on 7 July, marking the end of an era for a generation of film buffs; but the magic of Hogwarts and its famous bespectacled graduate will live on at a number of locations. Alnwick Castle, England Grab a broom and play Quidditch in these groundsCreative Commons / Eugene Regis The medieval Alnwick Castle, England’s second largest inhabited castle, was the location for Harry’s first broomstick lesson and the crash landing of the flying car. Insider tip: Film buffs may recognise that the castle was not only home to the Harry Potter movie sets but also to other films such as Elizabeth and Ivanhoe. Edinburgh cafés, Scotland Follow in the footsteps of J.K RowlingCreative Commons / Dainee Ranaweera Scotland’s capital has great shops, stunning architecture and imposing volcanic hills. Insider tip: J.K. Lavenham, England Freshwater West, Wales Lacock Abbey, England
Nerd Paradise : Divisibility Rules for Arbitrary Divisors It's rather obvious when a number is divisible by 2 or 5, and some of you probably know how to tell if a number is divisible by 3, but it is possible to figure out the division 'rule' for any number. Here are the rules for 2 through 11... The last digit is divisible by 2. The sum of all the digits in the number is divisible by 3. The last 2 digits are divisible by 4. The last digit is 5 or 0. The number is both divisible by 2 and divisible by 3. Cut the number into 2 parts: the last digit and everything else before that. The last 3 digits are divisible by 8 The sum of all the digits in the number is divisible by 9. The last digit is a 0. Break the number into two parts (like you did for the division by 7 rule). Also there is a quick way for determining divisibility by 11 for 3-digit numbers: If the inner digit is larger than the two outer digits, then it is divisible by 11 if the inner digit is the sum of the two outer digits. Rules for all divisors ending in 1... User Comments: 9 Dividing By 12
A Father Who Creatively Captures His Kids (20 photos) If there was a prize that could be given out to the most creative father, I'd hope that it was awarded to Jason Lee. A wedding photographer by day, he's used to capturing some of the most important moments in a couple's lives. As a longtime fan of Jason's photos on Flickr however, I think the real magic happens when he turns the camera onto his daughters. Sure, his children are adorably cute in their own right, but that's not what makes his photos so interesting. It's when he puts his own spin on their everyday moments that we not only get to experience our own childhood again, we're able to see a father's pride shine through. I was able to get in touch with Jason to ask him a few questions. Q: How did you get into photography? Q: How do you come up with such creative photos of your daughters? Q: How has being on Flickr helped you with your business? Q: Any inspirational stories you'd like to share? Q: Do you have any advice for aspiring photographers? Q: Any quotes you live by?
Weierstrass functions Weierstrass functions are famous for being continuous everywhere, but differentiable "nowhere". Here is an example of one: It is not hard to show that this series converges for all x. In fact, it is absolutely convergent. Here's a graph of the function. You can see it's pretty bumpy. Below is an animation, zooming into the graph at x=1. Wikipedia and MathWorld both have informative entries on Weierstrass functions. back to Dr.
Mercedes Benz: Left Brain/Right Brain | Digital Ads I saw these great Ads recently—which are absolutely amazing I reckon. These digital works were designed for Mercedes Benz cars, and are based upon the left/right brain functions: ★★★★★ Like this type of article? Why not subscribe for Free via RSS or Email. Yes, the fourth Ad is a little different, but I still love it. Images © Copyright / Credits for the design works: Project: Left Brain Right Brain – Einstein. Why not take a look at one of these Articles... Here's a Selection of my Blog Posts: These are some of the most popular articles here on Andrew Kelsall Design.
- StumbleUpon The length of the polygonal spiral is found by noting that the ratio of inradius to circumradius of a regular polygon of sides is The total length of the spiral for an -gon with side length is therefore Consider the solid region obtained by filling in subsequent triangles which the spiral encloses. -gons of side length , is The shaded triangular polygonal spiral is a rep-4-tile. Someone Left The Cake Out In The Rain Nerd Paradise : Calculating Base 10 Logarithms in Your Head Calculating base 10 logarithms in your head on the fly is a lot easier than you may think. It is simply a matter of memorization and a little estimation... First memorize all the single digit base 10 logs. Remember this rule from high school? And what about this one, you remember it too? Good. Example #1: base 10 log of 400 That's the same thing as log(4*100) which equals log 4 + log 100. log of 4 you know from the table above. Now you may ask, what if it isn't just a number with a bunch of 0's after it? Example #2: base 10 log of 35 Suppose you wanted to find the logarithm of 35. Our guess: 1.545 Calculator says: 1.544068... Now you can convince all your friends and teachers that you are autistic. Example #3: base 10 log of 290438572: This is fairly close to log(2.9 * 100000000) = log 2.9 + log 108 2.9 is close to 3. Our Guess: 8 + .45 = 8.45 Calculated Answer: 8.46305... Now run off and scare some people with your new powers. User Comments: 14 And so it goes. To recap: and then ETA: Thanks! Fixed.
Visiting 10 of the Most Interesting Abandoned Places on Earth Travelers looking for a getaway from the normal getaway should skip the sandy beaches to walk amid silent relics in Namibia, Chernobyl or an abandoned California gold mining town. These empty places may look like Scooby Doo set pieces, but they hold important clues to bigger mysteries about both the past and the future; the creep of urban decay and the necessity of memorializing tragedy. Sometimes history lives alone. We bring you 10 modern ghost cities where you can choose your own adventure, exploring what once was and what could have been. Hashima Island, Japan After spending a little less than a century as a bustling coal mining facility, Hashima Island became known as "Ghost Island" when demand for petroleum outstripped demand for coal in the 1960's and the 5,000 Mitsubishi-employed islanders began a mass exodus. Hashima Island was officially re-opened for tourists in April 2009. 1 of 10 Photos