Rube Goldberg Overload!

A Rube Goldberg machine, for the uninitiated, is a device designed to accomplish a simple task in as many unnecessary, ludicrous steps as possible. The name comes, appropriately enough, from Rube Goldberg, a cartoonist and inventor most famous for his cartoons featuring singularly silly and elaborate machines like the one pictured below.

We’ve posted videos of Rube Goldberg machines in the past, because they’re a perfect example of a mechanical puzzle in action. Only when things happen in a precise order does the machine complete its task.

And they’ve been around long enough that we’re starting to see fun variations on the concept. Beyond simply accomplishing a task, many Rube Goldberg devices tell stories or center around a given theme. (We even featured one that was designed to take weeks to complete!)

And today, I’ve got four videos of Goldbergian goodness to share with you.

First off, another terrific entry from Purdue University. The school has really made a name for itself in the Rube Goldberg field over the last few years, and perhaps my favorite device of theirs is this record-setting machine charting the progression of human history:

From human history to racing history, we now turn our attention to this car part-themed device from the team at Arrow FiveYearsOut, complete with an unexpectedly zippy finale:

When it comes to devices with many moving parts in complex interactions, it’s hard to top watches with their myriad of miniature gears, wheels, and other intricate details.

So it should come as no surprise that Seiko has gotten into the Rube Goldberg spirit with their own timepiece-themed device, “The Art of Time.” Involving over 1,200 individual watch pieces, this might be the smallest, most elegant Rube Goldberg device I’ve ever seen:

And finally, we have my favorite of my recent discoveries. This video from YouTuber Kaplamino has been making the rounds on Facebook — uncredited, unfortunately — and it’s a marvel. It’s entitled “Magnets and Marbles,” but should really be called “Magnets and Marbles and Momentum and a Metric Buttload of Patience.”

Built on a tilted table, “Magnets and Marbles” is not a true Rube Goldberg device — there was never one complete uninterrupted run — but it remains a thoroughly impressive design.

According to the creator, “Each screen was recorded separately, and even like that, some of them only work 10% of the time. I can’t give you a number because I didn’t count the fails, but I think it’s over 100.”

Nonetheless, the clever use of magnets makes this one of the most dynamic and creative machines I’ve seen in quite a while:

Rube Goldberg devices are only growing more ambitious, audacious, and creative, and I cannot wait to see what people come up with next.


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Better Gaming With Math and Statistics!

[Image courtesy of ThreeSixtyOne.gr.]

Statistical analysis is changing the world. The wealth of available data on the Internet these days, combining with our ever-increasing ability to comb through that data efficiently using computers, has spawned something of a golden age in data mining.

You don’t need to look any further than the discovery of Timothy Parker’s plagiaristic shenanigans for USA Today and Universal Uclick to see how impactful solid analysis can be.

But it’s also having an impact on how we play games. Statistical analysis is taking some of the mystery out of games you’d never expect, making players more efficient and capable than ever.

We discussed this previously with the game Monopoly — specifically how some spaces are far more likely to be landed on than others — and today, we’re looking at two more examples: Guess Who? and Hangman.

Guess Who? gives you a field of 24 possible characters, and you have to figure out which character your opponent has before she figures out the identity of your character. Usually, if you end up with a woman or someone with glasses, your odds of winning are low, because some aspects are simply less common than others.

But is there an optimal way to pare down the options? Absolutely.

Mathematician Rafael Prieto Curiel has devised a strategy for playing Guess Who?, based on an analysis of the notable features of each character, breaking it down into 22 possible questions to ask your opponent:

Based on this data, he has even created a flowchart of questions to ask to maximize your chances of victory. The first question? “Does your person have a big mouth?”

Yes, not exactly a great first-date question, but one that yields the best possible starting point for you to narrow down your opponent’s character.

It’s certainly better than my first instinct, which is always to ask, “Does your person look like a total goon?”

Now, when it comes to Hangman, the name of the game is letter frequency. Just like a round of Wheel of Fortune, you’re playing the odds at first to find some anchor letters to help you spell out the entire answer.

But, as it turns out, letter frequency is not the same across all word lengths. For instance, E is the most common letter in the English language, but it is NOT the most common letter in five-letter words. That honor belongs to the letter S.

In four-letter words, the most common letter is A, not E. And it can change, depending on the presence — or lack thereof — of other letters.

From How to Win Games and Beat People by Tom Whipple:

“E might be the most common letter in six-letter words, and S the second most common, but what if you guess E and E is not in it?” In six-letter words without an E, S is no longer the next best letter to try. It is A.

In fact, Facebook data scientist Nick Berry has created a chart with an optimal calling order based on the length of the blank word.

For one-letter words through 4-letter words, start with A. For five-letter words, start with S. For six-letter words through twelve-letter words, use E. And for words thirteen letters and above, start I.

Of course, if you’re the one posing the word to be guessed, “jazz” is statistically the least-likely word to be guessed using this data. And your opponent will surely hate you for choosing it.


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It’s Follow-Up Friday: PUZZLES…IN…SPACE edition!

Welcome to Follow-Up Friday!

By this time, you know the drill. Follow-Up Friday is a chance for us to revisit the subjects of previous posts and bring the PuzzleNation audience up to speed on all things puzzly.

And today, I’m posting the results of our #PennyDellPuzzleSciFi hashtag game!

You may be familiar with the board game Schmovie, hashtag games on Twitter, or@midnight’s Hashtag Wars segment on Comedy Central.

For over a year now, we’ve been collaborating on puzzle-themed hashtag games with our pals at Penny Dell Puzzles, and this month’s hook was #PennyDellPuzzleSciFi, mashing up Penny Dell puzzles and anything and everything having to do with cartoons, animated film and television shows, characters, catchphrases, famous lines…anything!

Examples include The Day The Earth Stood Syll-acrostic, Captain James T. Kirkuro, Keep ON Asi-moving, or Mystery Person of Interest.

So, without further ado, check out what the puzzlers at PuzzleNation and Penny Dell Puzzles came up with!


Star Wars!

Obi Wan & Only KenKen-obi / Obi-Ken Kenobi

Star Words: Attack of the Pine Cones

Star Words: The Empire Strikes Blackout!

X-word fighter

Anagram Skywalker

“These Three aren’t the droids you’re looking for.” / “These aren’t the Drop-Outs you’re looking for”

“Do or do not. There is no Try-Angles.”

”May the Fore ‘n’ Aft be with you”


Star Trek!

“Beam me Ups and Downs, Scotty!”

“The Double Trouble with Tribbles”

Deep Space Nine of Diamonds

Captain Jean-Lucky Star

Captain Kathryn Right of Way

“Make the Connection so.”

“The needs of the many outweigh the needs of A Few Choice Words.”

“Live long and progressions”

Star Trek II: The Wrath of Kenken


Starspellman

Simon Says: In space, no one can hear you scream.

Battleships Galactica

Nineteen Eighty-Foursomes

Slaughterhouse Fancy Fives

A Wrinkle in Rhyme Time

Piggyback to the Future

Triplex Machina

The Frame-inator

“May the Solicross be with you” [Glenn’s note: I know this sounds like Star Wars, but it feels more Spaceballs to me.]

“Now that’s the worst disguise ever. That guy’s gotta be an Analog.”

Double Trouble in Little China

Garth Marenghi’s Darkplaces, Please

Flower Powers for Algernon

WordbEnder’s Game

Penny’s next puzzle…The Ultimate Question of Life, the Universe, and Everything (answer on page…42)

So It GOes FISH

Heads & Tails from the Darkside

A Clockworks Orange

Galaxy Word Quest

Face to Face/Off

3rd Rock from the Sunrays

Tales from the Crypt-ograms

Two at a Time Lords

Doctor Who’s Calling

Close Encounters of the Three of a Kind

“Curse your Sudoku but inevitable betrayal!”

“You can’t Give and Take the sky from me.”

Doomsday Bookworms

Spanners

Weird and Wacky Science Words

RoboCombos

When Word Games Collide

The Puppet Mixmasters

Godzilla vs. Guess Who

Ringersworld

E.T. the Exchange Board

“E.T. Phrase Craze”

Flash Grand Tour

War of the Word Quest

Alphanumeric-ageddon


And the PuzzleNation readership got involved as well! @HereLetty delivered the terrific Galaxy Quotefalls and War of the Wizard Words!

Have you come up with any Penny Dell Puzzle SciFi entries of your own? Let us know! We’d love to see them!

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Unraveling the Riddle of Math Puzzles!

Math puzzles are among the most intimidating in the world of puzzles. Many people will happily dive into a crossword or tackle a word seek at a moment’s notice, but drop some numbers into a puzzle, and they hesitate.

But there’s no reason to fear!

Math puzzles are certainly a different form of puzzling, but like all puzzles, there’s always a way in, if you know how to look for it. Today, we’re going to solve two math puzzles together in the hopes of demystifying this style of puzzle.

Let’s take a look at our first math puzzle, “Count the Votes.”

A problem developed at a recent election where 5,219 votes were cast for four candidates. The victor exceeded his opponents by 22, 30, and 73 votes, yet not one of them knew how to figure out the exact number of votes received by each. Can you?

Okay, where do we begin?

Let’s start with what we know. We know the total number of votes, 5,219. That will be one side of our equation.

We also know that the winner beat his three opponents by 22 votes, 30 votes, and 73 votes, respectively. Which means that the number of votes the winner received is the key to solving this puzzle. Let’s call that number of votes “x.”

The winner beat one opponent by 22 votes (x – 22), another by 30 votes (x – 30), and the last by 73 votes (x – 73).

We can build our simple equation from that information:

x + (x – 22) + (x – 30) + (x – 73) = 5219

Still a little daunting, but we can simplify it, because it doesn’t matter in which order we add or subtract things. So let’s look at that formula without the parentheses:

x + x – 22 + x – 30 + x – 73 = 5219

Now let’s reorganize it, putting the addition parts together and the subtraction parts together:

x + x + x + x – 22 – 30 – 73 = 5219

Subtracting those three numbers separately is the same as subtracting their total, so let’s simplify again:

x + x + x + x – 125 = 5219

Adding four x’s together is the same as multiplying one x by 4, so let’s express that:

4x – 125 = 5219

Now we’re getting somewhere.

And subtracting 125 from 4x is the same as adding 125 to 5219, so let’s do that:

4x = 5344

Finally, we divide 5344 by 4 to give us the value of x:

x = 1336

Which means that our victor got 1336 votes, one opponent got 1314 (x – 22), another opponent got 1306 (x – 30), and the last got 1263 (x – 73), totalling 5129 votes.

Now, that wasn’t so bad, was it? Let’s try another that’s a little bit harder.

This one is called “The Mathematical Cop.”

“Top of the mornin’ to you, officer,” said Mr. McGuire. “Can you tell me what time it is?”

“I can do that same,” replied Officer Clancy, who was known on the force as the mathematical cop. “Just add one quarter of the time from midnight until now to half the time from now until midnight, and it will give you the correct time.”

Can you figure out the exact time when this puzzling conversation took place?

Okay, this one isn’t as obvious about providing us with information, but the info is there if you look.

Since everything relates to the time “now,” we’ll make “now” our x.

Then we take each part of Officer Clancy’s statement in turn. “Just add one quarter of the time from midnight until now.”

“The time from midnight until now” is the same as “now,” x, so one quarter of that time is x/4.

And we’re meant to add that to “half the time from now until midnight.”

That’s a little bit tougher. After all, “the time from midnight to now” was easy, but “the time from now until midnight” covers the rest of a 24-hour day. So, if x covers the time from midnight to now, then “1440 – x” covers the time from now until midnight.

(There are 1440 minutes in a day, 60 minutes times 24 hours, and it’s easier to do all this in minutes, rather than hours and minutes.)

So “half the time from now until midnight” is (1440 – x)/2.

Okay, so what does our equation look like?

x/4 + (1440 – x)/2 = x

That’s pretty daunting, but we know what our goal is: to combine all those x’s and get them on the same side of the equal sign. And like the equation we built for “Count the Votes,” we can simplify it with some careful applied math.

The first step is to get rid of those pesky fractions.

Let’s multiply everything by 2 in order to remove the “/2” below “(1440 – x),” which gives us:

2x/4 + (1440 – x) = 2x

We can use the same trick to remove the “/4” below 2x:

2x + 4(1440 – x) = 8x

Now we’re getting somewhere! Let’s get rid of that 2x on the left by subtracting 2x from both sides:

4(1440 – x) = 6x

Let’s go a step further by multiplying both 1440 and x by 4:

5760 – 4x = 6x

One more step, and we’ve got all of those x’s combined on one side of the equation, as we’d hoped:

5760 = 10x

Divide 5760 by 10 and we’ve got x:

576 = x

If you recall, x represented the time “now,” but it’s still in minutes. To get the actual time, divide 576 by 60 to get the number of hours. 540 minutes = 9 hours, so 576 is 9 hours, 36 minutes.

It’s 9:36 AM, Officer, though to be honest, if you tell everyone the time this way, I imagine people stop asking you the time after a while.

I realize these are only two examples, and math puzzles come in all shapes and sizes, but hopefully, they don’t seem quite so intimidating, now that you know how to pick them apart for the important information.

Good luck! And if you find any math puzzles you need help with, send them our way! They could end up the subject of a future blog post!


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It’s Follow-Up Friday: Word Mastery Answers edition!

Welcome to Follow-Up Friday!

By this time, you know the drill. Follow-Up Friday is a chance for us to revisit the subjects of previous posts and bring the PuzzleNation audience up to speed on all things puzzly.

And today, I’ve got the answers to last week’s edition of Word Mastery: Famous Expressions!

We posted twelve famous sayings or expressions that were reworded in a verbose and ridiculous fashion, and we challenged you to unravel them and figure out the original expressions. Let’s see how you did!


1.) A mobile section of petrified matter agglomerates no bryophytes.

A rolling stone gathers no moss.

2.) Desist from enumerating your fowl prior to their emergence from the shell.

Don’t count your chickens before they hatch.

3.) Scintillation is not always identification for an auric substance.

All that glitters is not gold.

4.) A plethora of culinary specialists has a deleterious effect upon the quality of purees, consummes, and other soluble pabula.

Too many cooks spoil the broth,

5.) A chronic disposition to inquiry deprived the domestic feline carnivorous quadruped of its vital quality.

Curiosity killed the cat.

6.) It is in the realm of possibility to entice an equine member of the animal kingdom to a source of oxidized hydrogen; however, it is not possible to force him to imbibe.

You can lead a horse to water, but you can’t make him drink.

7.) Persons deficient in the faculty of determining values move with impetuosity into places that purely spiritual beings view with trepidation.

Fools rush in where angels fear to tread.

8.) If John persists without respite in a constant prolonged exertion of physical or intellectual effort he will develop into a youth slow and blunted in perception and sensibility.

All work and no play makes Jack a dull boy.

9.) Immediately upon the absence of the domesticated carnivorous feline, the common house rodent proceeds to engage in sportive capers.

When the cat’s away, the mouse will play.

10.) A round vessel made of staves bound with hoops that is destitute of contents is productive of the most deafening din.

It is the empty barrel that rattles the loudest.

11.) Products of ingenuity are the offspring of exigency.

Necessity is the mother of invention.

12.) Residents of structures composed of silicate substances should refrain from casting hardened mineral objects.

Those who live in glass houses should not throw stones.


How did you do? Let us know in the comments section below!

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How Many Girls Do You See?

Optical illusions are a topic we’ve covered numerous times here on the blog, but I’ve noticed a growing trend in the optical-illusion memes that go viral: something to debate.

Think about it. We had The Dress, which the Internet lost its collective mind over. Then we had The Jacket, which upped the ante from two interpretations to four.

Now a friend of the blog has sent me an optical illusion that’s been making the rounds in her group of friends and sparking much debate.

Fellow puzzlers and PuzzleNationers, I give you…How Many Girls?

What’s going on here? Is this a casting call? A family reunion? Are there mirrors involved, or identical twins? Is this a doppelganger convention? Evidence of human cloning?

This image first appeared a few months ago on the Instagram account of Swiss photographer Tiziana Vergari, and although it hasn’t quite reached the fever pitch of The Dress, it’s by far the most viewed image on her account.

So, how many girls do you see?

Last chance before I give you the definitive answer!

Okay then.

According to Vergari, this photo features two sisters, both of whom are looking into mirrors (although one of those mirrors is out of frame).

Honestly, based on the eye placement and angle of the heads for the two I circled, I would’ve said four.

Just goes to show you, you never can tell.

Except for The Dress. That was obviously blue and black. I mean, come on.


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