Free QR Code Generator Online

THE MOST COMPACT CAULK GUN - At just 4" it's no bigger than the tube of caulk it's dispensing. Cut off the excess tubing to reach even tighter spaces. No more oversized, heavy caulk guns that limit your reach.

This serene view from the coast of Sweden looks across the Baltic sea and compresses time, presenting the passage of one night in a single photograph. From sunset to sunrise, moonlight illuminates the creative sea and skyscape. Fleeting clouds, fixed stars, and flowing northern lights leave their traces in planet Earth's sky. To construct the timelapse image, 3296 video frames were recorded on the night of a nearly full moon between 7:04pm and 6:35am local time. As time progresses from left to right, a single column of pixels was taken from the corresponding individual frame and combined in sequence into a single digital image 3296 pixels wide.

Recorded during 2017, timelapse sequences from the International Space Station are compiled in this serene video of planet Earth at Night. Fans of low Earth orbit can start by enjoying the view as green and red aurora borealis slather up the sky. The night scene tracks from northwest to southeast across North America, toward the Gulf of Mexico and the Florida coast. A second sequence follows European city lights, crosses the Mediterranean Sea, and passes over a bright Nile river in northern Africa.

Just two weeks ago, dark skies over the desert in northern Iran held this alluring celestial vista. The dramatic digital mosaic finds the Moon and Mars alongside the Milky Way's dusty rifts, stars, and nebulae. Captured through a series of exposures to cover a range in brightness, that night's otherwise Full Moon is immersed in Earth's shadow. It actually appears fainter and redder than the Red Planet itself during the widely watched total lunar eclipse. For cosmic tourists, the skyscape also includes the Lagoon (M8) and Trifid (M20) nebulae and planet Saturn shining against the Milky Way's pale starlight.

What's that green streak in front of the Andromeda galaxy? A meteor.

China is indeed churning out solar panels, wind turbines, electric vehicles and batteries that flood global markets — proof, advocates say, of an inevitable green transition.

Yet these supposed marvels are forged amid overwhelming and surging use of fossil fuels, particularly coal.

Its real energy achievements — dramatic energy ramp-ups to fuel prosperity, and advances in nuclear power — remain overlooked. //

Crucially, China’s solar-panel production depends on coal: Every one of its silicon smelters requires its own coal-fired power station. //

While China added unprecedented solar and wind capacity in 2025, it also planned an unprecedented number of new coal power plants.

China remains the world’s top coal consumer, with fossil fuels supplying over 87% of its primary energy.

Renewables’ share was 40% in 1971 when China was poor, but plummeted to 7.5% in 2011 — and has risen slowly over the next 13 years, to just over 10% in 2024. //

Second, China is surging ahead in technologies that could truly decarbonize the planet at scale: nuclear fission and fusion.

In the West, traditional nuclear has grown prohibitively expensive, with US construction costs tripling since the mid-1980s.

The US has built only three new nuclear plants this century, at enormous cost and with 11-year timelines.

Contrast this with China, where reactors are completed in five years and costs have halved since 2000.

China has expanded from three reactors in 2000 to 60 today, with 37 under construction (nearly half the global total), 42 planned and 146 proposed. //

This isn’t renewables redux; it’s a race for abundant energy.

And the West risks awakening to a world powered by Beijing’s reactors, not its own ingenuity.

Green China is a sham — but it’s time for the West to emulate Beijing’s real playbook, by ramping up energy use and investing in nuclear R&D.

Resistor Color Code Calculator is an interactive online Calculator to calculate the resistance value based on color bands or color-coded stripes on a resistor. //

EIA PREFERRED OR STANDARD RESISTOR VALUE SERIES
E SERIES TOLERANCE
(SIG FIGS) NUMBER OF VALUES IN EACH DECADE

Amazon has just changed the encryption used for Kindle books on older e-readers without a software update. Any Kindle with software 5.18.5 or higher is now downloading new e-books using the KFX-ZIP format, which is not compatible with the encryption broken by 3rd-party tools for popular software such as Calibre and the DeDRM plugin.

Prior e-books using old Kindle software were downloaded as KFX files, which were easily backed up to a user’s computer via USB cable, and then had their encryption broken to load the books on other devices or to create a local backup of prior purchases.

The new KFX-Zip files are available on Kindle e-readers from the 7th generation through the 11th generation. Prior Kindles from the 6th generation and below do not yet download e-books using the new book encryption, but it remains to be seen whether Amazon will issue a mandatory software update to plug the loophole that could break digital rights management.

The National Institute of Standards and Technology (NIST), founded in 1901, is now part of the U.S. Department of Commerce. NIST develops industry-wide frameworks and guidelines, including a range of cybersecurity recommendations and resources. It advises against the use of knowledge-based authentication methods, such as personal questions, due to their susceptibility to being easily guessed. Instead, NIST recommends three simple principles for securing passwords, PINs, and passphrases: they should be long, complex, and random.

• Long -- 15 characters minimum
• Complex -- hard for computers to guess, easy for humans to remember
• Random -- if a human can create it a computer can guess it.

Ethernet switches aren’t exactly made for audio. And yet, they are the backbone of the IP audio networked facility. They have the power to make or break, literally, your broadcast operation. Here are a few things we’ve learned over the years in working with switches.

IP audio networks for broadcast are built on multicast, WheatNet IP audio included. Ethernet switches do not natively manage multicast traffic. They send multicast packets to every port on the switch, whether the devices connected to those ports requested streams or not. When more traffic arrives at the port than the device can handle, flooding occurs and that results in audio dropouts or complete loss of audio.

For this and other reasons, managed switches are best for broadcast. These Ethernet switches have control, security, and monitoring features that unmanaged switches lack. Among the most important are two key IGMP (Internet Group Management Protocol) features for managing audio packets: IGMP Snooping and an IGMP Querier.

Toto "Africa" with the names of all the nations of Africa

The Russian Transport Ministry is blaming the Ukrainian military for the massive explosion that sent the 93,000-ton liquid natural gas tanker Arctic Metagaz to the bottom of the Mediterranean. The Arctic Metagaz, a sanctioned Russian-flagged LNG tanker, was en route from Tieshan, China, to Port Said, Egypt with a cargo of 61,000 tons of LNG. When she was about 150 miles off Sirte, Libya, she lit up the Mediterranean sky.

This calculator is used to size pumps. The calculator determines the total differential head of the pump and the absorbed power required. Frictional and static pressure drops in the suction and discharge lines are also calculated as well as the NPSH available.

Clone the item back to your individual vault by using the  Options menu to select Clone. This can be done from the Admin Console or, if you are an Owner, Admin, or have Manage collection access to the collection the item is kept in, it can also be done from your Vaults view.

Delete the item from the organization vault by selecting Delete from the  Options menu.

For Raspberry Pi clusters, ham radio
digital modes, logging infrastructure, or anything where precise
timestamping matters, it’s noise.

A Stratum 1 NTP server solves this permanently: GPS satellites carry atomic-clock-derived time. A GPS receiver with a pulse-per-second (PPS) signal gives you sub-microsecond accuracy. Your entire network syncs directly from that, with no upstream dependency, no internet requirement, no pool latency.

Here’s how to build one for under $20.

This guide covers the Bitwarden approach to onboarding and succession planning for members of your organization, starting with our approach to the relationship between members and organizations, then covering the simplest use-cases for onboarding and succession, and finally and moving on to the levers and options at your disposal to fit Bitwarden to your needs.

The "out of memory" pop-up says your'e running out of the limit on private committed memory—a type of virtual memory. Not that you're running out of RAM (physical memory). It doesn't matter how much available RAM you have. Having lots of Available RAM does not allow you to exceed the commit limit. The commit limit is the sum of your total RAM (whether in use or not!) plus your current pagefile size.

Conversely, what "uses up" commit limit (which is mostly the creation of process-private virtual address space) does not necessarily use any RAM! But the OS won't allow its creation unless it knows there is some place to store it if it ever needs to. So you can run into the commit limit without using all of your RAM, or even most of your RAM.

If you want to find out what's using committed memory you need to look at Task Manager's "Details" tab and enable the "Commit size" column.

Nor will the total of the "Commit size" columns add up to the "commit charge" (30.1 GB on your machine), because other things contribute to commit charge: Nonpaged and paged pool and some more "subtle" mechanisms like copy-on-write sections, pagefile-backed sections, AWE mappings... but these are usually small compared to process-private v.a.s.)

On that tab, the "Memory (Private working set)" column corresponds to what the "Processes" tab shows for "Memory". This is the RAM currently assigned to each process for its committed virtual address space. The remainder will be in the pagefile. But, again, processes have other types of address space, mostly of the sort called "mapped", and some fraction of that will be in RAM as well. There are other system-wide things created by the OS, not specific to any process, that use up RAM too.

The Google Authenticator app can generate one-time verification codes for sites and apps that support Authenticator app 2-Step Verification.

If you set up 2-Step Verification, you can use the Google Authenticator app to generate codes to sign in to your Google Account. You can still generate codes without an internet connection or mobile service.