C For Chemistry delves into the chemistry of science experiments. This chemist knows what he's talking about. These chemistry experiments are not only fun, but very educational for all of those interested in scientific chemical reactions and properties.
Watch this science video tutorial from Nurd Rage on how to make a 100 foot glow stick with Dr. Lithium.
Watch this tutorial to learn how to build up tones with cross hatching when drawing. Make sure to pause the video after each step and look at the screen every few seconds while you are drawing.
What would happen if you stick your hand in a pool of liquid nitrogen? Would your hand freeze to death? Would it harden to an unnatural state? Would it shatter as soon as you touched something? Well, real life isn't like the movies (i.e. Demolition Man), so believe it or not, your hand would be safe, thanks to a little known phenomenon called the Leidenfrost effect.
Stay tuned for the always enjoyable Cooking With Dog. This cooking show is hosted by a DOG named Francis! The show demonstrates how to make popular Japanese dishes. This video demonstrates how to make Chawanmushi (Japanese egg custard dish with Ginkgo Seeds).
The problem with traditional wooden bows are the inadvertent breaking or snapping of them. Compound bows and fiberglass reinforced bows are hard to break, but self-made wooden bows are prone to damage. This video serves up some great tips on preventing any accidental breaking of a traditional-style bow. To see more videos about traditional bow and arrows, check out Traditional Archery Bows on WonderHowTo.
A great way to make frosting and layering a cake easier is by painting on some simple syrup over the surface. This will keep the area moist and prevent the cake from crumbling when you are cutting, manipulting or trying to frost the surfaces.
Knowing how to prevent drowning is important for all who swim. There are simple safety steps available that can help prevent drowning. Get expert tips and advice in this swimming video tutorial.
This instructional flooring video demonstrates how to prevent moisture damage on hardwood floors. Make sure your wood is delivered 48 hours in advance. Keep humidity levels at 30-50 percent.
Rattling doesn't just sound bad, but can create stress cracks in the body of plastic on an RC car. Use foam cutouts around the body posts to stop the body from rattling around. Watch this video tutorial and learn how to prevent the body of an RC car from rattling by softening with scrap foam.
You can prevent joint pain with vitamins and supplements. Amanda McQuade Crawford, medicinal herbalist and host of What a Relief, discusses natural remedies such as fish oil, SAM-e and garlic for joint pain. Watch this how to video and you will soothe your aching joints in no time.
Germs can spread via droplet transmission (a.k.a. sneezing). Watch this funny novelty video for a simple tip on how to prevent this.
Since its introduction in iOS 11, the Screen Recording tool has been a great way to show less tech-savvy users how to use their iPhones better. It's never been easier to show your grandmother how to disable Live Photos or lower screen brightness. However, banner notifications can appear during a recording, forcing you to start over. They can even interrupt a screen share during a Zoom or Skype meeting.
The World Health Organization has declared the new coronavirus a pandemic, and the Centers for Disease Control and Prevention recommends video visits with a healthcare professional to reduce the risk of being exposed to the coronavirus that causes COVID-19. If you are experiencing mild flu-like symptoms, virtual doctor visits may also prevent you from endangering others.
It's finally out. After months of testing, iOS 13 is available to install on your iPhone, which means over 200+ new features you can use right now. The update, released on Sept. 19, can be installed over the air or from a restore image using iTunes in macOS Mojave and older or Finder in macOS Catalina. Ditto for the 13.1 update issued on Sept. 24.
Firewall solutions for macOS aren't impervious to attacks. By taking advantage of web browser dependencies already whitelisted by the firewall, an attacker can exfiltrate data or remotely control a MacBook, iMac, Mac mini, or another computer running macOS (previously known as Mac OS X).
KeePassX, 1Password, and LastPass are effective against keyloggers, phishing, and database breaches, but passwords managers rely on the operating system's clipboard to securely move credentials from the password vault to the web browser. It's within these few seconds that an attacker can dump the clipboard contents and exfiltrate passwords.
It's no secret that Google is all about AI. In their eyes, machine learning is the future of software development, and you can see evidence of this all over the last couple Android updates. They've used it to power all sorts of features in their Pixel phones, and they've even donated some of their AI smarts to AOSP for all Android manufacturers to share. But it looks like Samsung isn't exactly on board.
Any app on your iPhone could potentially listen in on your conversations and use that information to target you with tailored ads. Although most companies, including Facebook and Apple, have come out and vehemently denied these claims of spying on consumers, who's to say they're telling the truth? The only way to be sure you're safe is to take matters into your own hands.
Stumbling upon a specifically tailored advertisement on your iPhone can be a bit disconcerting. But that's what happens when you let advertisers track your data. Some of you may appreciate more relevant ads in apps, but the rest of you might consider it a straight-up privacy invasion.
The last update to iOS 12 featured more emoji, Group FaceTime, eSIM functionality, real-time depth control for new iPhones, and a few other interesting tidbits and fixes. Now, in the latest for iPhones, iOS 12.1.1, Apple brought back a few things that were removed or made more difficult to access in previous updates, and it even has a few new features to offer, albeit small ones.
A simple security flaw can allow an attacker to gain a strong foothold with little effort on their part. When a web application permits remotely hosted files to be loaded without any validation, a whole can of worms is opened up, with consequences ranging from simple website defacement to full-on code execution. For this reason, RFI can be a promising path to obtaining a shell.
After six betas, iOS 11.4 was officially released to everyone with a compatible iPad, iPhone, and iPod touch. Some features are ones that Apple promised over eight months ago when iOS 11 was first pushed out. This update makes sense since iOS 12 will be announced at WWDC on June 4, and you can't announce a new version like that without first delivering on promises made for the one before it.
Passwords stored in web browsers like Google Chrome and Mozilla Firefox are a gold mine for hackers. An attacker with backdoor access to a compromised computer can easily dump and decrypt data stored in web browsers. So, you'll want to think twice before hitting "Save" next time you enter a new password.
As smartphone users, we live in dangerous times. The value of phones continues to rise, making them prime targets for thieves. In 2015, the FCC estimated that one million phones are stolen each year, and with several devices starting to hit the $1,000 mark now, these numbers are sure to rise. But what do you do if you fall victim to phone theft?
While it's easy enough to ask websites not to track your browsing activity in Safari, they do not have to honor your request. Plus, some of the third-party content providers that websites use can actually invasively track you across other websites. Thankfully, iOS 11 includes a way to minimize companies from tracking you across the web on your iPhone.
Heart disease is the leading cause of death of men and women in the US. Over half a million Americans die from it annually. Atherosclerosis — a build up of plaque in the arteries — is a common feature of heart disease and can be caused by smoking, fats and cholesterol in the blood, diabetes, and high blood pressure.
Bed bugs are parasites not yet known to spread disease — but they cause plenty of irritation. As scientists and landlords search for new ways to deal with the pests, a new study examines how we can deter bed bugs without so many chemicals.
Apple's been hard at work adding new features and finishing touches to iOS 11, and there's evidence of it everywhere. But there's one place where these changes are more noticeable than perhaps anywhere else — Safari.
Everyone's been talking about Samsung's new Galaxy S8 and S8+, but not all of the chatter is positive. The fingerprint scanner is in an awkward location, the North American variant is simply not as smooth and fluid as the international model, and Samsung Experience is nothing more than TouchWiz with a bow on it. But perhaps worst of all, user reports are starting to roll in that indicate the Galaxy S8 may have a serious problem with premature screen burn-in.
In a disturbing turn of events, Uber has been tracking oblivious iPhone users even after they removed the application from their phone. Two years ago, the situation escalated to such an extent that CEO Travis Kalanick earned a slap on the wrist from Apple mogul Tim Cook.
Call them what you will—moss piglets, water bears, or by their real name, tardigrade—but these intriguing tiny creatures can come back from the brink of death. They can survive boiling, deep freezing, UV radiation, completely drying out, and even a trip to space—without the benefit of being in a spacecraft.
Android has several features built into the platform that improve user experience but require extra attention to prevent a security breach. By modifying these settings, you can drastically reduce the possibility of someone exploiting your device or intercepting information.
As a fan of the HTC One series, I almost always upgrade my phone soon after the new model becomes available. I purchased the M7 when it first came out, upgraded to the M8 shortly after its launch, and then jumped on the M9. However, I stopped right there.
If you're a parent of a toddler (or have a friend that acts like a toddler), you occasionally need to take a break just to preserve your mental health. The perfect way to buy yourself some "me time" in this scenario would be to pull up an episode of Dora the Explorer on Netflix or YouTube, then hand your phone or tablet over to your child (or child-like friend) and try your best to relax while they're occupied.
There are two kinds of people standing in the international section of the grocery store: the kind who love Pocky and the kind who don't yet know that they love Pocky because they've never had it.
Creamer, milk (whole or skim), sugar, or even butter—you've probably added at least one of these to your coffee to improve its taste at some point. If you're looking for something different, though, try a new twist with a dash of cinnamon. This sweet, sharp spice can do so much more than improve coffee's taste, and I've got 10 examples for you to consider.
Good day people, today we will examine some basic, for some people well-known attacks, also we will take a look at some advanced attacks.
If you're reading articles in bed or scrolling through Facebook before trying to fall asleep, you'll spend much less time on your iPhone before drifting off into slumber as long as you're using the right display mode.
There is something so satisfying about dipping your spoon into a perfectly smooth slice of cheesecake. There is something a bit less satisfying about it if the top of the cheesecake is cracked and cratered.
