Video about making blacker-than-Vantablack pigment in a home lab

See the original posting on Boing Boing

I always like seeing what Ben Krasnow is up to in his garage, whether it’s making astronaut ice cream or a refrigerator that works by stretching rubber bands. (Ben was a guest on my Cool Tools podcast a few years back). In the latest episode of his excellent Applied Science YouTube channel, Ben describes the process of making pigment that absorbs even more light than Vantablack, which absorbs 99.965% of visible light.

Image: YouTube Read the rest

How I stopped destroying car and motorcycle batteries

See the original posting on Boing Boing

This PulseTech charger, and responsible behavior, has changed my life.

I used to kill the batteries in my cars and motorcycles on an almost annual basis. I would intend to ride the bike more, but it’d be rainy. I would keep telling myself to take the Vanagon out but it was parked behind my daily driver. Sometimes I’d park the daily driver behind the Vanagon and just use it… and suddenly two, three or six months had gone by.

I bought two of these PulseTech chargers and started rotating between three vehicles. Several times I have even resurrected nearly dead batteries and resurrected ones a battery tester showed as ‘bad.’

The automatic desulfation feature constantly varies the voltage of the float charge. I believe it works as I am well over 6 years old on both my car batteries and each one still reads 12.8v when I test them. My 44-year-old motorcycle with an 8-year-old battery starts right up on the first press of the button, assuming I remember to turn on the choke.

Desulfation may be snake oil as just keeping the batteries topped up should extend their service life dramatically — but I am bran-loyal to these chargers.

I put those little charging pigtails on each battery and swap two chargers between my current fleet of three vehicles.

XTREME CHARGE XC100-P – Charge 12V Battery Maintenance Charger Desulfator via Amazon Read the rest

Extraterrestrials, UFOs, and the Voyager Golden Record

See the original posting on Boing Boing

The wonderful Brains On! science podcast for kids just completed a four part series on “Making Sense of Myths” and the final episode, “Aliens and UFOs,” includes an interview with me about the Voyager Golden Record! Listen above! Of course the Voyager Golden Record is the iconic message for extraterrestrials attached to the Voyager I and II space probes launched by NASA in 1977. The Voyager Record tells a story of our planet expressed in sounds, music, images, and science, from Bach to Blind Willie Johnson to Chuck Berry, to greetings in dozens of human languages (and one whale language).

A few years ago, my friends Timothy Daly, Lawrence Azerrad, and I released the Voyager Golden Record on vinyl for the first time, as a lavish box set. Our project’s resonance with the public, and the Grammy that we were honored to receive for it, are really a testament to the majesty of the original record and brilliance of its creators.

I hope the story of the Voyager Record included in this Brains On! episode sparks kids’ imaginations and instills a sense of wonder about humanity’s place in the universe! It certainly does for me.

The Voyager Golden Record 3xLP Vinyl Box Set and 2xCD-Book edition is available from Ozma Records.

Read the rest

Enjoy these unsolicited dik-dik pics

See the original posting on Boing Boing

Dik-diks are basically tiny African deer whose name comes from the chirping sounds they make. And if that’s not adorable enough, then just wait until learn that they mark their territory with their tears (okay technically it’s a secretion from the preobital gland but still).

So here are some completely unsolicited dik-dik picks, courtesy of the UnsolicitedDiks Twitter page.

Top image via Sharp Photography / Wikimedia Commons Read the rest

MyFonts offers the largest selection of professional fonts for any project

See the original posting on Boing Boing

When it comes to immediately grabbing a reader’s attention in any medium, few things are more important than picking the perfect font—regardless of whether you’re advertising your brand online or in print.

The MyFonts Monotype Fresh Font Bundle offers over 50 handcrafted fonts from one of the world’s most revered typeface companies, and it’s available for over 74% off at $49.99.

How you write your content is undeniably important in a world of limited attention spans, and this collection of fonts that covers a wide range of typestyles will help you expand your existing collection with incredible sans serif, serif, script, and display options.

Each font has been handmade and selected by the world-renowned experts at Monotype, and it’s easy to quickly find and select the font you’re looking for based on your individual project and needs.

Gain unlimited access to a growing number of unique fonts for life with the MyFonts Monotype Fresh Font Bundle—available for just $49.99.

You can’t beat free! Get $70+ worth of premium Mac apps for free today!

Prices are subject to change. Read the rest

Leave the salt and sand behind with this portable beach shower and storage combo

See the original posting on Boing Boing

Going to the beach is almost always an enjoyable experience, but trekking back through your house on the way to the shower can leave a trail of sand the quickly saps the day of its sunny fun. Thankfully this BeachBox: Portable Shower & Storage unit has you covered the next time you hit the beach.

As the world’s first portable shower that doubles as a storage box, this intrepid cleaning combo is packed with features like an insulated shower tank, a non-slip changing lid, and a modular storage design that’s easy to take with you on the go.

You’ll be able to keep your gear dry thanks to separated storage compartments and divider slides, and the tank can hold up to 1.5 gallons of insulated hot water at once.

It’s also easy to refill the BeachBox in seconds, and you’ll be able to use the shower wand in order to douse  your body with fresh water before you hit the road.

Wash the beach off before you get to your car or house with this BeachBox: Portable Shower & Storage unit for just $169.99—10% off retail.

You can’t beat free! Get $70+ worth of premium Mac apps for free today!

Prices are subject to change. Read the rest

The Fastest Way to Create an Event Sign-up System

See the original posting on DZone Python

In this post, I’m going to show you how to create a simple event sign up system. Since one of the goals is to create something quickly, we are going to use Corvid to build the application.

Corvid is a development platform from Wix, which allows you to concentrate on the logic of the application using JavaScript and not spend time on writing HTML/CSS to create the UI. Corvid is focused on helping teams dramatically decrease time spent on development and ship products faster.

Create a D3 Dashboard With Cube.js

See the original posting on DZone Python

In this tutorial, I’ll cover building a basic dashboard application with Cube.js and the most popular library for visualizing data — D3.js. Although Cube.js doesn’t provide a visualization layer itself, it is very easy to integrate with any existing charting library. Additionally, you can use Cube.js Templates to scaffold a frontend application with your favorite charting library, frontend framework, and UI kit. The scaffolding engine will wire it all together and configure it to work with the Cube.js backend.

You can check the online demo of this dashboard here and the complete source code of the example app is available on Github.

AMD Launches Navi-Based Radeon RX 5600XT To Battle GeForce RTX 2060 Under $300

See the original posting on Slashdot

MojoKid writes: Today AMD launched its latest midrange graphics card based on the company’s all new Navi architecture. The AMD Radeon RX 5600 XT slots in under $300 ($279 MSRP) and is based on the same Navi 10 GPU as AMD’s current high-end Radeon RX 5700 series cards. AMD’s Radeon RX 5600 XT is outfitted with 36 compute units, with a total of 2,304 stream processors and is essentially a Radeon 5700 spec GPU with 2GB less GDDR 6 memory (6GB total) and a narrower 192-bit interface, versus Radeon RX 5700’s 8GB, 256-bit config. HotHardware took a Sapphire Pulse Radeon RX 5600 XT around the benchmark track and this card has a BIOS switch on-board that toggles between performance and silent/quiet modes. In performance mode, the card has a 160W power target, 14Gbps memory data rate, a Boost Clock of 1,750MHz and a Game Clock of 1,615MHz. In silent/quiet mode, things are a bit more tame with a 135W power target, 12Gbps memory, and 1,620 MHz/1,460MHz Boost and Game Clocks, respectively. In the gaming benchmarks, the new Radeon RX 5600 XT is generally faster than NVIDIA’s GeForce RTX 2060 overall, with the exception of a few titles that are more NVIDIA-optimized and in VR. Though it lacks the capability for hardware-accelerated ray tracing, the new AMD Radeon RX 5600 XT weighs in $20-30 less than NVIDIA’s closest competitor and offers similar if not better performance.

Read more of this story at Slashdot.

Installing Oracle Java SE 11 on Ubuntu 18.04

See the original posting on JavaWorld

This article is a quick guide for Ubuntu Linux users installing Java 11, the current long-term support (LTS) Java version. I’ll briefly make the case for migrating your code base to Java 11, then guide you through the steps to install Oracle JDK 11 using the Ubuntu command line.

Note that this is a quick guide for Ubuntu users installing Java 11. I won’t dive too deep into Java 11 features or migration issues, which are amply covered elsewhere.

The case for migrating to Java 11

Released in March 2014, Java 8 promised a more modern approach to Java development. This trend continued in 2017, when Oracle announced a faster development cadence, throwing out the all-or-nothing approach that had allowed Java SE to stagnate between previous releases.

To read this article in full, please click here

Protect your eyes from screen fatigue with these blue light blocking glasses

See the original posting on Boing Boing

We’re all guilty of constantly staring at a variety of screens throughout the day. The only problem is that the blue light that’s emitted by most electronics — and even energy-efficient lightbulbs — is notoriously bad for our eyes and, subsequently, our health. Here are three glasses that offer superior protection for your eyes both during the day and at night.

1. Swanwick® Crystal Night Swannies: Blue Light Blocking Glasses

MSRP: $89 | Sale Price: $75 (15% off)

Featuring the latest CR-39 lenses, these prescription-grade glasses deliver unparalleled protection against harmful blue light without affecting the clarity of your vision—all within a supremely stylish and modern design.

2. Swanwick® Crystal Day Swannies: Blue Light Blocking Glasses

MSRP: $109 | Sale Price: $89 (18% off)

Ideal for looking at screens during the day, these glasses block out the most harmful types of blue light while still letting bits of healthy blue light (roughly 450-500nm) in to help keep your regular circadian rhythm in check.

3. Swanwick®Classic Night Swannies: Blue Light Blocking Glasses

MSRP: $69 | Sale Price: $49 (28% off)

With uniquely-tinted CR-39 lenses and a classic design, these glasses will help you optimize your sleep every night by eliminating harmful rays when you’re taking one last look at your devices before you go to sleep.

You can’t beat free! Get $70+ worth of premium Mac apps for free today!

Prices are subject to change.

  Read the rest

Tim Cook’s favorite showerhead is now smaller and cheaper

See the original posting on The Verge

Video: Nebia by Moen

Nebia, the shower startup that counts Apple CEO Tim Cook among its early investors, has launched the third-generation of its shower system on Kickstarter. The big news this time around is the new Nebia by Moen shower’s price, which starts at $199 compared to $499 for last year’s model, and its slightly smaller size. That starting price includes the overhead part of the shower, while stepping up to the $269 model gets you the optional “wand” to clean those “hard-to-reach areas.” The prices are temporarily discounted to $160 and $199, respectively, for the duration of the Kickstarter campaign.

Outside of the price and size reduction, the selling points of Nebia’s third-generation shower are similar to its previous models. The company…

Continue reading…

Edited down to the essentials, this episode of The Price is Right is only 11 minutes long

See the original posting on Boing Boing

Gordon took an episode of The Price is Right and edited it down to gameplay. The resulting video is an eleven-minutes long blast of pure Price is Right. Price is Right as an Olympic sport.

I trimmed a few things like…
-Long form product descriptions.
-Pandering to the audience for answers.
-Wheel spinning animations.
-Unnecessary delays.

The methodology seems overly aggressive — isn’t pandering to the audience the point of the show? — but an interesting deconstruction all the same. Read the rest

Heartwarming comic about breast-reduction surgery

See the original posting on Boing Boing

Today on Oh Joy Sex Toy (previously) guest-artist Alex P Perkins offers us a graphic memoir of her breast reduction surgery in 10th grade, and the way it put her on a journey toward “loving my body for what it is: mine.”

Perkins’s work is a powerful reminder that the graphic form is exceptionally well-suited to memoir and personal storytelling, from Maus to Fun House to Zahra’s Paradise.

My Breast Reduction [Alex P Perkins/Oh Joy Sex Toy]

Read the rest

Google’s Pixelbook Go Chromebook is now available in that pink color

See the original posting on The Verge

Photo by Vjeran Pavic / The Verge

Google’s Pixelbook Go Chromebook is available in a color other than black now that the “not pink” version of the laptop is shipping from the US Google Store. Although the base $649 configuration with an Intel Core M3 chip is still only available in black, you can get the pink model if you’re willing to step up to the $849 Core i5 version we tested in our review. Chrome Unboxed was first to spot the availability of the new color scheme.

We can’t imagine there are many people who’ve been holding off on buying a Pixelbook Go purely because of the limited color options. Nevertheless, it was a decent-enough laptop when we tried it out for ourselves. Battery life is good, the keyboard is excellent, and overall it’s a solidly built laptop. Its…

Continue reading…

1 3 4 5 6 7 5,268