"Look, son! I built a time machine!" Dad, you just put some glow sticks on the minivan. *dad pulls a gun* "Get in the fucking time machine."— Big Money Rowlf (@iRowlf) May 10, 2013
Could a person walk the entire city of NY in their lifetime? (including inside apartments)
Like the answer to Paint the Earth, the answer to the first part of this question is pretty straightforward to look up.
But what if it weren't? Can we figure out the answer from things we already know? Let's look at a few ways of estimating it.
First of all, how wide is a street? I've never seen one of those flashing crosswalk countdowns signs start with less than 10 seconds; if people walk at a meter per second, most roads are probably at least 10 meters wide.There's a table from the 1892 World Almanac listing the widths of all avenues and streets in Manhattan, as well as the lengths of all the blocks, confirming that even in 1892 the streets were at least 20 meters wide. I found a copy of the table over at the blog Stuff Nobody Cares About.
Most people wouldn't have trouble walking 10 kilometers (6 miles) in a day. If the city were covered in kilometer-long streets laid down edge-to-edge, with no space between them, you could fit a thousand roads side-by-side in 10 kilometers. That means a person could walk back and forth across an entire 10km by 10km grid in, at most, 3 years.On the streets. You have to add another 3 years for the avenues.
I don't know how many 10 km square swatches it takes to cover New York City, but it's probably not very many.Turns out it's a little more than 1 to cover the land and water. And since NYC has some space not occupied by streets, this tells us that the answer to the first part of Asaf's question is almost certainly "yes"—purely from a geometry standpoint.Another way to come at this calculation is to remember that Manhattan streets are numbered, and you never see four-digit numbers.
Here's another approach: I happen to remember that the US Postal Service employs about half a million people. NYC's population is almost 10 million people,The city itself is about 8.5 million, and the metro area is about 20 million. so almost 1 out of every 35 Americans lives there.I remember seeing some California politician boast that California had 14% of the country's millionaires. But 1 in 8 Americans live in California, so that's pretty close to what you'd expect. If New York also has 1 out of every 35 postal employees, that's about 15,000 people.
If all those employees were letter carriers, and they visit every address in the city every workday, that would mean it takes a total 15,000 x 8 hours = 14 person-years to traverse the city—much less than a lifetime! Since lots of postal employees are not letter carriers, and real letter carriers stop frequently, this estimate is probably still much higher than the reality.
Another way: Imagine that each person lives alone in a square room measuring 10 meters by 10 meters, which is about the size of a typical two-bedroom apartment. Furthermore, let's assume that everyone's apartment is on the ground floor with at least one side facing a street. In that case, at a walking speed of 2.5 mph, it would take only 2.4 years to walk past every apartment—which Wolfram|Alpha helpfully points out is roughly 1.4 elephant gestation periods.
Any way we come at this problem, it looks like the answer is "yes"—you can walk down all the streets in New York City. And, indeed, it turns out there are 6,074 miles of road in NYC, which would take a total of a little over 100 days of walking.
Now, what about the second part of Asaf's question—walking through all the apartments?
This one is trickier. As a rule of thumb, a household is overcrowded if it has more people than rooms.There are a bunch of definitions, but But at the same time, most households don't have more than two rooms per person. Let's assume all households have 1.5 rooms per person.
Let's assume it takes 20 seconds to get from the door of a room to the door of the next non-visited room. (Most of the time it will be much less, but sometimes the next non-visited room is on another floor or down the stairs, so it's good to give ourselves some extra time.)
If it takes 5 seconds to walk into a room and back out, then you can visit every room in New York City in 10 years. Even if you only visit rooms for eight hours a day, that's totally plausible to fit into one lifetime.
However, a word of warning to Asaf:
So while it might take only 30 years to visit every apartment in New York City ...
... it could take you 2,000 millennia to serve out the resulting prison sentence.
Business books are notorious for being loaded with MBA lard, trotting out "key takeaways" like "take risks," "build a great team," and "don't be afraid to fail."
But the ones worth reading ditch the platitudes in favor of instructive anecdotes — which is why they so often come from execs who have lived through it.
From fashion startups to automotive empires, here are the best leadership books from people who have led their companies to success.
What is the hard thing about hard things? That they don't have a formula, says Ben Horowitz.
"Hard things are hard because there are no easy answers or recipes," he writes. "They are hard because your emotions are at odds with your logic. They are hard because you don’t know the answer and you cannot ask for help without showing weakness."
Horowitz, now one of the most sought-after investors in the game, used to be CEO of software management company Opsware before it was acquired by HP for $1.6 billion.
Bonus: Horowitz shows off his ridiculously extensive knowledge of rap lyrics — quoting Kanye West and DMX before the close of the opening chapter.
Disclosure: Marc Andreessen, co-founder of Andreessen Horowitz, is an investor in Business Insider.
Alfred Sloan was the CEO of General Motors from 1923 to 1946 — when the car company was arguably the most important organization on Earth.
More than your average business memoir, the book is a distillation of Sloan's experiences and thoughts around how to steer a massive organization. It serves as a treatise on decentralization and the structure of the modern corporation.
Coauthored by Jason Fried, the cofounder and CEO of Basecamp, "Rework" is a spare startup manifesto.
While everything in the book might not apply to you — Fried's company has remained at a tiny 37 members while staying profitable — it's useful for the contrarian mirror it provides. After reading it, you'll scrutinize every meeting request that crosses your desk.
Solvent-annealing is found to be an effective method to increase the grain size and carrier diffusion lengths of trihalide perovskite materials. The carrier diffusion length of MAPbI3 is increased to over 1 μm. The efficiency remains above 14.5% when the MAPbI3 thickness changes from 250 nm to 1 μm, with the highest efficiency reaching 15.6%.
Not sure if we’re allowed to do this, but fuck it. Here’s a recipe leaked straight from our new book for some Roasted Sriracha Cauliflower Bites. If you haven’t preordered the book yet, pull your shit together and get to it. If you have preordered the book already, take the rest of today off because clearly you’re ahead of the fucking game.
Planning a road trip is rarely just about finding the fastest route between two points. You also have to consider stops for gas, bathrooms, food, or entertainment. Alongways is a Google Maps mashup that lets you plug in your origin and destination, and search for anything you want along the way, from "pizza" to "dog parks" and everything in-between.
Without a doubt, the Oculus Rift will be the be-all and end-all of our most cherished nerd fantasies (until the holodeck comes.) Example: This game to train like Luke Skywalker in Star Wars—a remote floats around you firing stun blasts that you have to deflect with your lightsaber.
Herein, we describe a valuable method for the introduction of the [18F]CF3 group into arenes with highly improved specific activity by the reaction of [18F]trifluoromethane with aryl iodides or aryl boronic acids. This [18F]trifluoromethylation reaction is the first to be described in which the [18F]CF3 products are generated in actual trace amounts and can therefore effectively be used as PET tracers. The method shows broad scope with respect to possible aryl iodide and aryl boronic acid substrates, as well as good to excellent conversion. In particular, the [18F]trifluoromethylation of boronic acids was found to outperform [18F]trifluoromethylation reactions of halogenated aryl precursors with regard to conversion, reaction conditions, and kinetics.
A quality label: Tracers for positron emission tomography (PET) with a [18F]CF3 group directly attached to an arene were synthesized with improved specific activity by the trifluoromethylation of aryl iodides and aryl boronic acids with [18F]trifluoromethane (see scheme). In particular, the trifluoromethylation of aryl boronic acids proceeded rapidly under mild reaction conditions, thus making this method highly suitable for PET-tracer production.
باید سرم را گرم کنم به یک کاری که فکر نکنم به چیزی که نمیخوام بهش فکر کنم. باید چیزی بنویسم تا از چیزی که نباید بنویسم ننویسم. یک کار خیلی مهم دارم که انجامش موعد تحویل دارد و خوشبختانه یا متاسفانه ترجمه و بازنویسی چند داستان خودم است. داستانهایی که کلمه به کلمهاش …
برای سرگرم کردن خودم و فرار از کلمههای خودم، هربار که میروم دستشویی سوگ مادر شاهرخ مسکوب به کوشش کامشاد را میخونم. واقعا روش خوبی را برای سرگرم کردن خودم انتخاب کردم. کتابش در این حال من کاربری مثل روضه برای بدحالان را دارد. برای سوگ کسی سوگواری میکنی که نمیشناسی و اشک میریزی چون رویت نمیشود برای درد خودت اشک بریزی. درد تصویر شده در کتاب یک درد موجه است که میشود برایش بیهیچ سرزنشی گریه کرد. کتابش سر و چشمم را گرم میکند. جوری دارم اشک میریزم که مادربزرگم برای تیر گلوی علیاصغر میریخت. سوگ مادر نشد، فکر کردم دستورالعمل تامین برق به مشتریهای مستقل پرمصرف در ایالت ایلینوی رو بخوانم که باید فردا خلاصهاش را برای همکاران بفرستم. این بهترین سرگرمی و منحرف کنندهترین متن برای ذهن کلید کرده من خواهد بود. یک جزوه چهل صفحهای است که در هرپاراگرافش بیست بار توضیح داده منظور از “مشتری برق” و “تامین کننده برق” چیست. چرا نمیفهمد من که الان صفحه بیست و یک رسیدم حتما دیگه متوجه شدم مشتری کیست دکل کجاست. این چیزهای طولانی با تفسیر اضافی را وکلا مینویسند که بعدا حرف از توش در نیاد. بعدا درنیای بگی که نامفهموم بود. خوندن متن این شکلی ساعت یازده شب خستهترم میکند. بر میگردم سر داستان.و ترجمه و بازنویسی “از پلهها که بالا آمدی…” نفس خودم بالا نمیآید. عکس پلهها دسکتاپ لپتاپم است. همه پنجرهها را میبندم و پلهها را نگاه میکنم. باید در متن انگلیسی اضافه کنم از پلهها که بالا آمدی، نفس من دیگر هیچوقت بالا نیامد. دوباره دارم همان کاری را میکنم که قول داهام نکنم. کتاب خودم را میبندم و برمیگردم سر سوگ مادر :
“… هوا سنگینی میکند و به دشواری نفس میکشم. او زمین و آسمان من بود”
سوگ مادر – ص سی و دو
|Courtney shared this story from Super Opinionated.|
Gentlemen, do you sometimes need to dress up a little bit but also want to remain comfortable and maintain your sense of style?
Then look no further than these Assassin’s Creed-inspired hoodies — on sale now for just $28.00 at The Brother’s Cut!!
For Mono Monday this week, a fantastic smile captured in a portrait by Nicola Battistini led us on a journey for more black-and-white photography taken in Thailand. From street market scenes to majestic temples, the Southeast Asian country has much to offer.
Thanks to everyone who participated last week.