Police Post Racist and Violent Messages on Facebook, a Review Shows

Police Post Racist and Violent Messages on Facebook, a Review Shows

Moskos, who now is an associate professor in the Department of Law, Police Science, and Criminal Justice Administration at John Jay College, said that some of what officers say is likely hyperbole — a way of signaling to colleagues that an officer is not a coward and will have their partner’s back when a dangerous situation erupts. The Plain View Project used department rosters to search for Facebook pages for every officer in Phoenix; St. Louis; Philadelphia; Dallas; York, Pennsylvania; Twin Falls, Idaho; Denison, Texas; and Lake County, Florida. In Philadelphia, which has roughly 6,600 officers, the Plain View Project identified 1,073 on Facebook, about a third of whom had made troubling posts or comments.

Source: www.buzzfeednews.com

Plastic Gears Are the Future (2017)

Plastic Gears Are the Future (2017)

For an apples-to-apples comparison of a solid nylon spur gear, a nylon spur gear with a stainless-steel core, and a reinforced nylon spur gear with a carbon steel core, results in the following: (The following materials properties are taken from the PS (solid nylon), PU (stainless steel), and the NSU (carbon steel) series from KHK.) Setting the toque limit of the MC901 solid nylon gear at 100 Nm, the maximum allowable bending strength torque for an equivalent stainless-steel hub gear with a MC901 rim would also be 100 Nm. However, the equivalent carbon-steel core gear, with a 30% fiberglass fill nylon rim, will have a maximum allowable bending strength torque of 138 Nm.

Source: www.machinedesign.com

Discrete Mathematics and Functional Programming

Discrete Mathematics and Functional Programming

This site provides information about and supplemental material for Thomas VanDrunen, Discrete Mathematics and Functional Programming August 2012 by Franklin, Beedle and Associates. I’m posting the work-in-progress here:

For information on reviewing this book or related matters, contact Tom Sumner at Franklin, Beedle. For feedback on the text, errata reporting, etc, contact Thomas VanDrunen.

Source: cs.wheaton.edu

Apple AirPort Firmware Data Deletion Vulnerability

Apple AirPort Firmware Data Deletion Vulnerability

On at least AirPort Extreme AP firmware 7.7.9 and AirPort Express firmware 7.6.9 (the newest available for each device at the time of reporting), a “factory-default” reset just moves the configuration file to a new location on the device, and the old file and up to two additional previous configurations remain accessible on the device. A new owner of a used Apple AirPort that has been “factory-default reset” with a vulnerable firmware version can still retrieve at least:

The level of access granted to the account with just an Apple ID and “infinite access token” is unknown. 2019-02-15 (+226d) – I had a conference call with Scotty of Product Security, an Airport firmware engineer, and a couple others from the privacy team at Apple, discussing disclosure and a timeline for a new firmware release.

Source: jcs.org

Remembering Murray Gell-Mann (1929–2019), Inventor of Quarks

Remembering Murray Gell-Mann (1929–2019), Inventor of Quarks

“This is Murray Gell-Mann”, the caller said, then launched into a monologue about why Caltech was the center of the universe for particle physics at the time. In telling this to me, Feynman then went into a long diatribe about how Murray always seemed to think the names for things were so important. I never quite understood why Murray—who could have gone to any university in the world—chose to work at Caltech for 33 years in an office two doors down from Feynman.

Source: blog.stephenwolfram.com

US newspapers run more photos of school shooting suspects than victims (2018)

US newspapers run more photos of school shooting suspects than victims (2018)

When U.S. newspapers cover school shootings, they run more photos of the perpetrators than the victims, suggests a recent study published in the American Behavioral Scientist. Photos of perpetrators outnumber photos of each deceased victim by a ratio of 16 to 1, on average, according to an analysis of newspapers’ coverage of three school shootings in 2007, 2012 and 2015. The study’s author, Nicole Smith Dahmen, an associate professor at the University of Oregon’s School of Journalism and Communication, examined 4,934 front-page photos from nine days of coverage following the shootings.

Source: journalistsresource.org

We Don’t Have Unprofitable Customers, Just Unhappy Accidents

We Don’t Have Unprofitable Customers, Just Unhappy Accidents

So imagine our surprise when we sit down to our first “joint” business review with our new “partners” after the big day and find out one of their best accounts is…. Customer profitability for distributors is driven by order size and margin rate, especially if everyone on the team is selling the same service and receiving the same commission plan. Just draw up a list of unprofitable customers and hit them with either a price increase or a new minimum order!

Source: jansanity.com

Ways to travel at nearly the speed of light

Ways to travel at nearly the speed of light

The two components, electric and magnetic fields, like two sides of the same coin, work together to whisk particles at relativistic speeds throughout the universe. Scientists suspect magnetic reconnection is one way that particles—for example, the solar wind, which is the constant stream of charged particles from the sun—is accelerated to relativistic speeds. Filled with magnetic fields and charged particles, wave-particle interactions in these bubbles can launch high-energy cosmic rays at 99.6% the speed of light.

Source: phys.org

Researchers strapped cameras on 16 cats and let them do their thing [video]

Researchers strapped cameras on 16 cats and let them do their thing

In a study published this month in , the behavioral ecologist at the University of Derby in the United Kingdom placed small cameras on 16 cats and followed them for up to 4 years as they prowled their neighborhoods. A: A couple of other studies had put cameras on cats, but they tended to only look at one thing: how often cats cross roads, for example, or how many animals they kill. If we find that cats seem more bored or stressed out when kept indoors—for example, by pacing, like some animals do at the zoo—that means we need to think more about enriching their indoor lives, or giving them some outside time.

Source: www.sciencemag.org

Streak (2018 Google Partner of the Year) and Is Hiring in Vancouver

Streak (2018 Google Partner of the Year) and Is Hiring in Vancouver

Our backend is running on Google Cloud Platform (GCP). We make extensive use of GCP’s managed services and are always at the forefront of GCP’s evolution:

On the frontend we’ve built the InboxSDK library (https://www.inboxsdk.com) to power our best-in-class integration with Gmail. State and data synchronization is accomplished with a battle tested in-house framework that makes extensive use of streams will be very competitive with compensation, we’re not opening a Vancouver office to get cheap labor.

Source: www.streak.com