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.

Microsoft Authenticator is a mobile app that helps you sign in to all your accounts without using a password.

Notes: 

Microsoft Authenticator is not available for PC or Mac as authenticator apps are typically designed for smartphones for security reasons. Learn more.

Microsoft no longer supports Authenticator versions that are more than one year old. Always keep your device up to date.

Bitwarden Authenticator is a standalone app that generates time-based one-time passwords (TOTPs) for logins that support authenticator app two-factor authentication (2FA). It generates 5-10 digit codes, by default using SHA-1 and rotating them every 30 seconds.

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2FAS Auth — Internet’s favourite Open-source two-factor authenticator.
Private, simple and secure.

The original Allied powers united because of a web of bilateral treaties activated in the wake of Austrian Archduke Franz Ferdinand’s assassination by a Serbian nationalist on June 28, 1914. In a domino-like chain reaction, Austria-Hungary declared war on Serbia (July 28); Serbia’s protector, Russia, mobilized its forces to defend Serbia (July 30); and Austria-Hungary’s ally, Germany, declared war against Russia (August 1), which also necessitated declaring war against France (August 3). Germany’s plan for fighting France required it to first invade Belgium (August 3–4). Great Britain was obligated to defend Belgium, so it responded by declaring war against Germany (August 4). And as an ally of Great Britain, Japan declared war against Germany on August 23.

It works with all browsers and is not limited to just browser use. Use it to log into any device, application, or unlock encrypted drives. 

Some sites support OTP codes; others support security keys. OnlyKey does it all and is the most universally supported 2FA key.

You can use your OnlyKey immediately for two-factor authentication and passwordless login (FIDO2) supported by major websites such as Microsoft, Google, Facebook,Dropbox, GitHub,Okta, AWS and more.

Keep your online accounts safe from hackers with the Security Key by Yubico. Trustworthy and easy-to-use, it's your key to a safer digital world.

Convenient and portable: The Security Key NFC fits easily on your keychain, making it convenient to carry and use wherever you go, ensuring secure access to your accounts at all times. Simply plug in via USB-A or tap on your NFC-enabled device to authenticate.

With the Nitrokey Passkey, you can reliably protect your accounts against phishing and password theft. The device allows super simple and secure passwordless login as well as two-factor authentication (2FA) using the modern WebAuthn or FIDO2 standard. This standard is supported by more and more websites and aims to replace traditional passwords. The device has a practical USB-A mini format and therefore fits on any key ring.

Store and sync passkeys in Bitwarden
To log into websites and other apps, store your passkeys in your secure Bitwarden vault, which gets synced anywhere you go. https://vimeo.com/880292801?fl=pl&fe=vl

Also available in beta, Windows 11 integrates with the Bitwarden desktop app to store and use passkeys natively with other applications.

Securely access your vault with a passkey
Use a passkey to sign into the Bitwarden web app and browser extension to streamline authentication, while using WebAuthn PRF passkey technology for secure vault encryption.
https://player.vimeo.com/video/887354174?h=87c13cfdeb

So, are passkeys shareable? The short answer is yes, when managed properly. Read on to learn more about passkeys, how they differ from passwords, and how teams and families can share passkeys without compromising security.

Hurling cars through the air with replicas of medieval siege engines has actually become a bit of a popular hobby, with early throws dating back to at least the early 1990s.

So what does the law truly say across all 50 U.S. states? We've dug through every state's department or bureau of transportation resources and compiled a breakdown of what we found to help shed some light on the matter. All told, we found 23 states with laws that required the use of both wipers and headlights in bad weather, although many more have rules related to the use of headlights in low visibility conditions.

These levers control the Lenco transmission, which is stout enough to harness the power of a spinning neutron star and convert its energy into quarter-mile domination and tire smoke.

Lencos' design is unique. It's as if Lenco racing transmissions snuck up behind some automatic and manual gearboxes in the dark and pilfered the finest attributes of each. From the automatic, it pickpocketed the planetary gears and clutch packs, but left behind the fluid valve-actuated gear selection. From the manual, it nabbed the clutch and flywheel, but ditched the slow H-pattern and dogleg shifters in favor of a series of levers the driver can simply slam into place. Also, the Lenco decided that the clutch directly connected to the engine would only be necessary when starting out in first or reverse. Otherwise, it acts like a dog box transmission, letting you run through the gears sans clutch pedal.

Giving each gear its own lever is kind of an odd decision, though. The setup deserves a place among the weirdest car shifters, looking kind of like the Hurst Lightning Rod from the 1980s Hurst/Olds. Why not a single lever like a sequential gearbox? 

Well, the reason many Lenco applications use individual levers is that multi-speed Lencos aren't just one transmission in a single case, but rather separate two-speed transmissions centipeded together. So as the driver pulls a lever, one of the transmissions goes from "low" to "high," which then stacks with the ratio in the next transmission, and the next, and so on. It's separate levers for separate segments, which keeps things simpler, mechanically.

Racers looking for ultimate power handling and direct control over shifting turn to Lenco's magnesium-cased CS1 Standard Design racing transmission, which can handle in excess of 3,500 horses. Lenco also offers more compact CS2, CS3, and CS4 gearboxes, as well the ST1200 Street Strip model and the Lencodrive Automatic.

I called Lenco to see what the fluid change intervals are, and here's what the company told me: For street use, you need to change it after 500 miles following the install, then every time you change the engine oil. For drag racing, high-horsepower applications necessitate new fluids after each event. Lower-horsepower drag racing can extend that to every two or three events. Always inspect the fluid, though, because if it's still clean, you're good. If there's clutch material floating in there, change it. The recommended fluid is a light-grade petroleum-based motor oil.

This page lists various fan-made tools that can help calculations related to the gameplay of Kerbal Space Program. Unlike addons, they do not directly influence the game, as they are run separately.

Performing a transfer from an orbit of one body directly to an orbit of another one seems like serious business. A few guides published on the forums have a lot of maths and stuff, you may think this is too complicated to figure out.

Well, it is rocket science, but: it's not complicated.

In the basic orbiting tutorial, you were introduced to the concept of orbiting, and basic orbit stabilization, as well as an orbital table to help you along. Now, what if you want an orbit that isn't on that table? What if you want to have an orbit with a specific period? That's where these formulae come in.

In the basic orbiting tutorial, you were introduced to the concept of orbiting, and basic orbit stabilization, as well as an orbital table to help you along. Now, what if you want an orbit that isn't on that table? What if you want to have an orbit with a specific period? That's where these formulae come in.

The blue circle is Kerbin itself, the light blue circle around it is the top of the atmosphere. You can click+drag on the left of Kerbin to set periapsis, or on the right of Kerbin for apoapsis. You can also use the text boxes to enter altitudes and velocities numerically.

You need to specify two values in all: either altitudes of periapsis and apoapsis, velocities at periapsis and apoapsis, or both altitude and velocity at either periapsis or apoapsis. You select the values you want to enter with the Parameters menu, the remainder of the information will be computed from the values you put in. If you enter altitude and a velocity above escape velocity, it'll give you excess velocity at infinity. The apoapsis and periapsis textboxes are altitudes above mean sea level (AMSL), the text report below has both altitudes AMSL and distances from the center of Kerbin. Note that if you specify values that lead to an apoapsis lower than periapsis, the plotted orbit and contents of the text fields will be swapped automatically.

This online tool calculates delta-v and CommNet requirements in KSP (a video game, Kerbal Space Program). It helps KSP players plan and solve complex missions. Just like the game, these calculators are made to be interactive and visual to help new players quickly grasp the mechanics of rocket science.