Nitinol Engines (1992)

Nitinol Engines (1992)

Simple heat engines using Nitinol have been demonstrated since the 1973, when Ridgway Banks produced the first working engine at Lawrence Laboratories in Berkeley, California. Getting Warmer: The Nitinol Engine

by Ridgway Banks

Mr. Banks, an independent machinist and inventor in Point Richmond, California, develops novel heat engines using a peculiar alloy called Nitinol. The unwitting ancestor of the Nitinol Engine was one of a series of “nonsense machines” I’ve made over the years as presents for children — or for no particular reason.

Source: free-energy.ws

Song of the Rarest Large Whale on Earth Recorded for the First Time

Song of the Rarest Large Whale on Earth Recorded for the First Time

A team with the National Oceanic and Atmospheric Administration (NOAA) first heard the song of the North Pacific right whale in 2009, but they weren’t able to visually confirm what animal was making the sounds until 2017. On Monday, the researchers finally published their findings in a paper, describing the repeating sound heard in the songs as gunshot calls, which have been recorded among various species of right whales before. Marine biologist Jessica Crance throws a sonobuoy into the ocean to acoustically monitor for North Pacific right whale calls.Photo: NOAA Fisheries
The endangered species is the rarest of all large whales, per NOAA.

Source: earther.gizmodo.com

Open-sourcing Sorbet: a fast, powerful type checker for Ruby

Open-sourcing Sorbet: a fast, powerful type checker for Ruby

We designed Sorbet to be used at Stripe, where the vast majority of our code is written in Ruby. We’ve spent the last year and a half developing and adopting Sorbet internally, and we’re finally confident that Sorbet is not just an experimental, internal project—we’re ready to share Sorbet with the entire Ruby community. Stripe is committed to growing the Sorbet project as a robust part of the Ruby ecosystem.

Source: sorbet.org

The ABCs of Personal Finance

The ABCs of Personal Finance

If you know you need $1500/month for your basic living expenses, have that much money direct deposited into your checking account directly from your paycheck. The average American pays $14,000 in taxes every year – enough money to become a millionaire over the course of their lifetime. For example, you can withdraw money early from your 401k account to pay for qualified educational expenses, medical expenses, and to make the downpayment on your first house.

Source: outlookzen.com

Forget monoliths vs. microservices. Cognitive load is what matters

Forget monoliths vs. microservices. Cognitive load is what matters

During the research for our forthcoming book (Team Topologies: Organizing Business and Technology Teams for Fast Flow), and working with clients in different parts of the world, we realized that many organizations fail to consider an important dimension in the decisions around the size of software services: team cognitive load. Why you should use team cognitive load to right-size microservices
In a world of “You build it, you run it,” where the whole team is responsible for the successful operation of software services, it is imperative to remove unnecessary barriers to team ownership of software. Three ways to reduce team cognitive load and improve flow
There is no magic formula for reducing cognitive load for teams, but having worked with many large organizations around the world (including in China, Europe, and the US), we recommend three helpful approaches: well-defined team interaction patterns, independent stream-aligned teams, and a thinnest viable platform.

Source: techbeacon.com

15-Inch MacBook Pro Battery Recall Program

15-Inch MacBook Pro Battery Recall Program

Apple has determined that, in a limited number of older generation 15-inch MacBook Pro units, the battery may overheat and pose a fire safety risk. Affected units were sold primarily between September 2015 and February 2017 and product eligibility is determined by the product serial number. Customer safety is always Apple’s top priority, and we have voluntarily decided to replace affected batteries, free of charge.

Source: support.apple.com

Consequences of Tidal Dissipation in a Putative Venusian Ocean

Consequences of Tidal Dissipation in a Putative Venusian Ocean

The solar tide in an ancient Venusian ocean is simulated using a dedicated numerical tidal model. Simulations with varying ocean depth and rotational periods ranging from -243 to 64 sidereal Earth days are used to calculate the tidal dissipation rates and associated tidal torque. The results show that the tidal dissipation could have varied by more than 5 orders of magnitude, from 0.001 to 780 GW, depending on rotational period and ocean depth.

Source: urn.kb.se

In Japan, It’s a Riveting TV Plot: Can a Worker Go Home on Time?

In Japan, It’s a Riveting TV Plot: Can a Worker Go Home on Time?

TOKYO — Last month, as Americans tuned in to the final episode of “Game of Thrones,” Japan was indulging in its own television fantasy world. Ms. Higashiyama is the protagonist of “I Will Not Work Overtime, Period!” — a modest television hit in Japan that has struck a chord in a country with a dangerously intense, at times deadly, national work ethic.

Source: www.nytimes.com

AT&T lays off thousands after getting billions in tax breaks, regulatory favors

AT&T lays off thousands after getting billions in tax breaks, regulatory favors

Back in November of 2017 AT&T promised that if it received a tax break from the Trump administration, it would invest an additional $1 billion back into its network and employees. This week, the word came down that AT&T would be laying off thousands more as it wraps up fiber deployment:

While AT&T had been deploying fiber as per a 2015 DirecTV merger condition (something the Trump FCC tried to credit to killing net neutrality), the company recently finished up those obligations, and now has returned to the default state of most US telcos: skimping on fiber upgrade investment thanks to limited competition. AT&T will promise a universe of jobs and network investment if it gets “X” (X=killing net neutrality, a tax break, eliminating consumer protections, approving a new merger, passing a law AT&T wrote), but then bails on following through.

Source: www.techdirt.com

Explicitly Conditioned Melody Generation

Explicitly Conditioned Melody Generation

Pitch models generally achieved a higher BLEU score with added conditioning factors, while Duration networks demonstrated the opposite trend — lower scores with added conditioning factors. The highest scoring pitch models had both chord and next chord conditioning, though models trained on the Bebop dataset seemed to generally perform better with current chord conditioning than next-chord conditioning, while models trained on the Folk dataset performed better with next-chord conditioning. While pitch models scored between .1 and .3, duration models scored from .5 to .9; that duration models with less conditioning scored higher than those with more may actually indicate that models with more conditioning generalized better, as their scores were closer to .5

MGEval produces a lot of numbers — In our case, 66 for a single model (6 scores each for 11 MGEval metrics we used).

Source: www.musicinformatics.gatech.edu