## Can you solve the bridge riddle Alex Gendler

Taking that internship in a remote mountain lab might not have been the best idea. Pulling that lever wth the skull symbol just to see what it did probably wasn't so smart, either, but now is not the time for regrets because you need to get away from these mutant zombies fast. With you are the janitor, the lab assistant, and the old professor. You've gotten a headstart, but there's only one way to safety across an old rope bridge spanning a massive gorge. You can dash across in a minute,.

While the lab assistant takes two minutes. The janitor is a bit slower and needs five minutes, and the professor takes a whole ten minutes, holding onto the ropes every step of the way. By the professor's calculations, the zombies will catch up to you in just over 17 minutes, so you only have that much time to get everyone across and cut the ropes. Unfortunately, the bridge can only hold two people at a time. To make matters worse, it's so dark out that you can barely see, and the old lantern you grabbed on your way only illuminates a tiny area.

Can you figure out a way to have everyone escape in time Remember no more than two people can cross the bridge together, anyone crossing must either hold the lantern or stay right next to it, and any of you can safely wait in the dark on either side of the gorge. Most importantly, everyone must be safely across before the zombies arrive. Otherwise, the first zombie could step on the bridge while people are still on it. Finally, there are no tricks to use here. You can't swing across, use the bridge as a raft,.

Or befriend the zombies. Pause the tutorial now if you want to figure it out for yourself! Answer in 3 Answer in 2 Answer in 1 At first it might seem like no matter what you do, you're just a minute or two short of time, but there is a way. The key is to minimize the time wasted by the two slowest people by having them cross together. And because you'll need to make a couple of return trips with the lantern, you'll want to have the fastest people available to do so.

So, you and the lab assistant quickly run across with the lantern, though you have to slow down a bit to match her pace. After two minutes, both of you are across, and you, as the quickest, run back with the lantern. Only three minutes have passed. So far, so good. Now comes the hard part. The professor and the janitor take the lantern and cross together. This takes them ten minutes since the janitor has to slow down for the old professor who keeps muttering that he probably shouldn't have given the zombies night vision.

By the time they're across, there are only four minutes left, and you're still stuck on the wrong side of the bridge. But remember, the lab assistant has been waiting on the other side, and she's the second fastest of the group. So she grabs the lantern from the professor and runs back across to you. Now with only two minutes left, the two of you make the final crossing. As you step on the far side of the gorge, you cut the ropes and collapse the bridge behind you, just in the nick of time.

### Want a happier marriage Share the housework equally.

Every few months, this debate flares up. It's about women who work, which is to say, most women. About how tough it can be succeed at work and still feel like a good mom. And we often ask, what can governments or corporations do to promote workfamily balance But what if we started thinking smaller What if one part of the solution was men doing more at home music transition Between 1950 and 2000, the share of women in the US workforce jumped from 34 to 60. But women were still expected to do most of the work when it came to raising kids and.

Running a house. Goldscheider The second shift of women working and taking care of the home was very stressful for the family. That stress is partially what led to the trope of the frazzled working mom. I don't know how she does it. People started to blame working women for the high divorce rates in the 1970s and 80s. And now, with fewer people getting married and having kids, it's still popular to pit working women against family. ltltVenker on Fox News If you were a real feminist, you would support housewives.

And see them as the heroes and women who work, wasting their time. Do you all think working moms still get treated unfairly But while the stress of the second shift may have contributed to divorce at first, things are changing. New research is showing that men and women who share responsibilities at home are happier than those in more traditional marriages. Goldschnieder Where men become more involved in the family.they're more attractive as a partner, they are less likely to divorce, they're more likely to have children Heterosexual couples in which men do more household chores are less likely to divorce.

And the more time men spend with their children, the more satisfied both partners say they are with the relationship. Take couples who have kids, but aren't married. In those relationships, men who were more involved with caring for the kids were more likely to make the transition to marriage compared those who were less involved. So maybe someday that iconic frazzled working mom trope will go the way of the fifties housewife a symbol of a time when women, and men, were trapped inside a narrow definition of what it meant to be a partner and a parent.

#### Terry Moore Why is x the unknown

Translator Timothy Covell Reviewer Jenny Zurawell I have the answer to a question that we've all asked. The question is, Why is it that the letter X represents the unknown Now I know we learned that in math class, but now it's everywhere in the culture The X prize, the XFiles, Project X, TEDx. Where'd that come from About six years ago I decided that I would learn Arabic, which turns out to be a supremely logical language. To write a word or a phrase or a sentence in Arabic.

Is like crafting an equation, because every part is extremely precise and carries a lot of information. That's one of the reasons so much of what we've come to think of as Western science and mathematics and engineering was really worked out in the first few centuries of the Common Era by the Persians and the Arabs and the Turks. This includes the little system in Arabic called aljebra. And aljebr roughly translates to the system for reconciling disparate parts. Aljebr finally came into English as algebra. One example among many.

The Arabic texts containing this mathematical wisdom finally made their way to Europe which is to say Spain in the 11th and 12th centuries. And when they arrived there was tremendous interest in translating this wisdom into a European language. But there were problems. One problem is there are some sounds in Arabic that just don't make it through a European voice box without lots of practice. Trust me on that one. Also, those very sounds tend not to be represented by the characters that are available in European languages.

Here's one of the culprits. This is the letter SHeen, and it makes the sound we think of as SH sh. It's also the very first letter of the word shalan, which means something just like the the English word something some undefined, unknown thing. Now in Arabic, we can make this definite by adding the definite article al. So this is alshalan the unknown thing. And this is a word that appears throughout early mathematics, such as this 10th century derivation of proofs. The problem for the Medieval Spanish scholars.

Who were tasked with translating this material is that the letter SHeen and the word shalan can't be rendered into Spanish because Spanish doesn't have that SH, that sh sound. So by convention, they created a rule in which they borrowed the CK sound, ck sound, from the classical Greek in the form of the letter Kai. Later when this material was translated into a common European language, which is to say Latin, they simply replaced the Greek Kai with the Latin X. And once that happened, once this material was in Latin,.

#### When Youre A Girl Who Loves To Fcking Cuss

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It's a noun. Okay, Siri Did you put this on my desk Who the beep put this on my desk Who's the beep jokester Seriously, who did this beep Oh, go beep a trumpet! That's the worst beep call I've seen this entire beep game. Stupid motherbeep piece of beep! I'm sorry. Brunette Woman I'm sorry. What did you just say I said he's a stupid motherbleep. Together Piece of bleep! I'm sorry. Were you doing something There was a, there was a fly. There was a big fly.

#### Ariana Grande Problem ft. Iggy Azalea Lyrics And Free Song Download

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#### Michele Bachmanns Trouble with Math Your base cant grow its way out of this October 6, 2009

And larry if i could just add that this where it let me jump in there if i could just add the shells that had the greatest ratings increases in recent time have been rush limbaugh glenn beck shot hannity people go where they think they're going to hear the truth and that's why they're going to the shelves but congressman as ari points out that talking about one percent of the population they had no effect on the election to the wouldn't you when you as a republican who want them to be the boys.

To the republican party was still as their ratings that are going up but i think you have to look at the reality of earlier that week trends that are going on to the limb but would you want we do want the limo that crowd to call it would you want them to be your boyish as the republican party stands in this country or members of who the american people are referring to larry in the american people are looking to voices like chon hannity rush limbaugh mark eleven i'll just go ahead with its it's a two.

#### Parallel Lines and Transversals by Shmoop

Parallel Lines, Transversals, and Angles, a la Shmoop. There are some couples who are just destined to be together forever. Romeo and Juliet. Cinderella and Prince Charming. Paula Deen and butter. But the greatest couple of them all has to be parallel lines. Parallel lines never touch, but they always stand by their partner. They stay by each other's sides forever. That's love. Besides, it's more romantic than having one wild encounter and then parting ways afterwards. When a transversal cuts across two parallel lines, it forms eight angles. If the measure of angle 1 is 110 degrees, what are the measures of the other 7 angles.

Sounds like a lot of work, but it's not as bad as you might think. First, we can see that angles 1 and 3 are vertical angles, and we know that vertical angles are always congruent in other words, they have equal measurements. So angle 3 has a measure of 110 degrees, too. It also helps to know that corresponding angles or angles that are in the same position relative to the parallel lines and the transversal are also congruent. In this case, the corresponding angle to angle 1 is angle 5.

Because it's above the parallel line and to the left of the transversal. So angle 5 is also 110 degrees. Wait. So angles 3 and 5 are congruent, too Actually yes. They're both on the interior between the two parallel lines and on alternate sides of the transversal, so we call them alternate interior angles. All alternate interior angles are congruent. There's one more angle that's 110 degrees, and that's angle 7. Angle 1 and angle 7 are both on the exterior of the parallel lines and alternate sides of the transversal, so they're called alternate exterior angles.

Alternate exterior angles are also congruent, and we can check that using vertical angles or corresponding angles. Yup, looks like 110 degrees to us. Those are all the odd angles, but what about the evens We know that a straight angle, or a line, has 180 degrees. Since any even angle makes a linear pair with an odd angle, any even angle is supplementary to an odd angle. That means the even angles have a measure of 180 minus 110 or 70 degrees. And tada! You now have all your angles. So don't forget to include parallel lines.

#### Mark Oxner For Congress Do The Math On Crazy Alan Grayson

Alan Grayson wants to give advice on how to educate our children in America. He says were falling behind in math because we don't redistribute income like Communist China. But you know, maybe a guy who wants to increase spending when we're already fifteen trillion dollars in debt isn't the best person to give advice on math. Yeah, I want grooming tips from Fidel Castro. Manners from Bill Maher. Diet from Michael Moore. Let's do the math and keep Alan Grayson out of Congress. I'm Mark Oxner and I approved this message.

#### Stable Marriage Problem Numberphile

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#### Harry Jordan. Dad Teaching Maths White Vs Brown

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