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Teensy and 3D Printer Make Beautiful Music Together

[Otermrelik] wanted to experiment with the Teensy audio library and adapter. That, combined with his 3D printer, led to a very cool looking build of the teensypolysynth. The device looks like a little mini soundboard with sliders and 3D printed knobs. You can see (and hear) it in the video below.

The Teensy audio library supports several output devices including several built-in options and external boards like the audio adapter used here. The library does CD-quality sound, supports polyphonic playback, recording, synthesis, mixing, and more.

Even more interesting is there is an audio design tool that runs in your web browser for building the audio portion of your code graphically. Even though it is in a browser, it isn’t tied back to…

How to Clear Your History in Any Browser

All web browsers remember a list of the web pages you’ve visited. You can delete this list at any time, clearing your browsing history and erasing the tracks stored on your computer, smartphone, or tablet. Each browser has its own separate history, so you’ll need to clear the history in multiple places if you’ve used more than one browser.

In the future, you can use private browsing mode to browse sensitive websites without your browser saving any history. You won’t have to clear your history afterwards.

Google Chrome for Desktop

To clear your browsing history in Chrome, on Windows, macOS, or Linux, click the three dots menu > More Tools > Clear Browsing Data. You can also press Ctrl+Shift+Delete to open this screen on Windows, or press Command+Shift+Delete on a Mac.

To delete your entire browsing history, select from “the beginning of time” in the box at the top of the screen and check the “Browsing history” option. You can also choose to clear other private data from here, including your download history, cookies, and browser cache.

Google Chrome on Android or iOS

To clear your browsing history in Google Chrome on Android or iOS, tap menu > Settings > Privacy > Clear Browsing Data.

On an Android device, you’ll need to choose how much data you want to delete at the top of the screen. Select from the “beginning of time” to clear everything. On an iPhone or iPad, Chrome will clear all your browsing data by default and won’t allow you to choose other time periods here.

Ensure the “Browsing history” option is checked here and tap the “Clear Data” or “Clear Browsing Data” button. You…

How to Clear Your History in Any Browser

All web browsers remember a list of the web pages you’ve visited. You can delete this list at any time, clearing your browsing history and erasing the tracks stored on your computer, smartphone, or tablet. Each browser has its own separate history, so you’ll need to clear the history in multiple places if you’ve used more than one browser.

In the future, you can use private browsing mode to browse sensitive websites without your browser saving any history. You won’t have to clear your history afterwards.

Google Chrome for Desktop

To clear your browsing history in Chrome, on Windows, macOS, or Linux, click the three dots menu > More Tools > Clear Browsing Data. You can also press Ctrl+Shift+Delete to open this screen on Windows, or press Command+Shift+Delete on a Mac.

To delete your entire browsing history, select from “the beginning of time” in the box at the top of the screen and check the “Browsing history” option. You can also choose to clear other private data from here, including your download history, cookies, and browser cache.

Google Chrome on Android or iOS

To clear your browsing history in Google Chrome on Android or iOS, tap menu > Settings > Privacy > Clear Browsing Data.

On an Android device, you’ll need to choose how much data you want to delete at the top of the screen. Select from the “beginning of time” to clear everything. On an iPhone or iPad, Chrome will clear all your browsing data by default and won’t allow you to choose other time periods here.

Ensure the “Browsing history” option is checked here and tap the “Clear Data” or “Clear Browsing Data” button. You…

New Browser Extension Offers Legal Access to Paywalled Content

If you’re a regular reader of scientific and scholarly journal articles, you’re probably also a regular shaker-of-fists at your computer screen, as so much of the good stuff is locked behind a paywall. But a new browser extension called Unpaywall may be able to help.

Launching April 4 (but available in prerelease now), Unpaywall is a simple button that gives Chrome users free access to millions of articles. Pulling information from large public databases including Google Scholar, PubMed Central, and DataCit,…

How to Upgrade Firefox from 32-bit to 64-bit in Windows Without Reinstalling

Most web browsers are installed in Windows as 64-bit versions by default, Firefox being the exception. If you installed the default download of Firefox, you have the 32-bit version, not the 64-bit version, even if you’re running a 64-bit version of Windows.

Say you recently got a new Windows computer. After installing the 32-bit version of Firefox from the main page, you installed your favorite add-ons, restored your backed up bookmarks, and even set up multiple profiles for personal and work purposes. But, now you want to upgrade to the 64-bit version of Firefox for better performance. You could uninstall the 32-bit version and then install the 64-bit version, but doing so will remove your Firefox user data, such as saved passwords, bookmarks, settings, extensions, and themes.

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You could back up your profile folders from the 32-bit version of Firefox and then restore them after uninstalling Firefox and installing the 64-bit version. But that’s a bit of a hassle, and there is an easier way.

NOTE: Firefox 64-bit can only be installed on 64-bit Windows. If you’re not sure which version of Windows you’re running, you can easily check. If you’re running 32-bit Windows, you cannot upgrade Firefox to 64-bit.

If you’re not sure if you’re running 32-bit or 64-bit Firefox,…

How to Transfer Pictures to the PlayStation 4 or Pro

People have long wanted to transfer images to their PlayStation consoles, but with the recent update that (finally) allows custom wallpapers, there has never been a better time to know how to do this. The unfortunate thing here is that there’s no straightforward way to simply transfer images to the PlayStation, so a workaround in necessary.

There are a couple of different ways of going about getting images to your PlayStation 4 or Pro, and we’ll outline them both here. Spoiler: they both end in taking a screenshot of your PS4 screen.

Method One: Use PlayStation Messenger

This is probably the easiest way to get images onto your PS4, and it’s also probably the most common way to do it.

Basically, you’ll need to have the image you want to move to the PS4 saved on your phone, and have the PlayStation Messenger app for Android or iOS installed.

Open the PlayStation Messenger app on your phone, and either pen a new message or choose an existing one. Whichever way you go, make sure it’s to someone who isn’t going to mind getting random images from you.

Attach the image to the message…

How to Configure a Proxy Server on Android

Android allows you to configure proxy settings for each Wi-Fi network. This is sometimes required to access the Internet on a business or school network, for example. Your browser traffic will be sent through the proxy you configure.

The proxy you configure will be used by Chrome and other web browsers, but may not be used by other apps. Each app developer can choose whether it uses Android’s proxy or not. That’s another good reason why you should use a VPN instead of a proxy. WIth a VPN, you can force all app’s network traffic through the VPN connection. It’s a better way to hide your IP address or access geoblocked websites that aren’t available in your country.

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This process is the same for all modern versions of Android, from Android 4.0 through 7.1. Some device manufacturers change the way Android’s Settings screen looks and functions, so you may find your Wi-Fi or proxy settings in a slightly different location.

Open Android’s Settings app and tap “Wi-Fi” to view a list of Wi-Fi networks.

Long-press the name of the Wi-Fi network you want to change the proxy settings for. Tap “Modify Network” when a menu appears.

If you haven’t already connected to the Wi-Fi network, you’ll need to connect to the Wi-Fi network and enter its passphrase before…