Mental Math Tricks to Impress Your Friends. One thing that fascinates me is performing mental math. Being able to quickly perform additions, subtraction, multiplications etc is a good way to impress your friends. The problem is, I’m not a math genius, and I don’t know much behind simple arithmetic. If you’re anything like me, but you’d still like to learn some basic math tricks, I hope you’ll find this list useful. Simple tricks How to multiply any two digits number by 11 Let’s say that you want to find the product of 36 and 11.
Example: What happens if the sum of the two numbers is bigger than 9? Square any two digits number that ends with 5 Calculating the square of a number below 100 is extremely simple. Multiply any two digits numbers with the same first digit and the second digit that sums up to 10 Let’s say that you want to multiply 42 and 48 together. Note that if the product of the second digits is below ten, you have to add a 0 in front of it. Multiply by 9 Quickly find percentages Addition Left to right approach Subtraction ie. Tamar Chansky: Overcoming Procrastination: 7 Strategies to Get the Job Done... Today. "Bing-bing-bing! " What was that? That's the sound your brain makes when the "finishing things" circuits light up with excitement because you really, actually, finally completed something.
It's like an internal hooray. Well, newsflash, that part of your brain just left you a note -- it says it's been feeling a little neglected lately. When I was in graduate school a friend told me there is no greater urgency to clean your house than when you have a dissertation to write. Why analyze data when you can scrub baseboards instead?
We feel guilty, we feel lame and we feel completely lacking in self control, but apparently what we should feel is like a normal human being in the 21st century. The number of people who admitted to procrastinating quadrupled between 1978 and 2002. 2002? Avoiding tasks has become so fundamental to our experience that it has been recently dubbed a human instinct. What is procrastination really about? Here are some ideas for how to overcome procrastination. Alternative Sleep Cycles: You Don’t Really Need 6-8 Hours! Most people only think that there is one way to sleep: Go to sleep at night for 6-8 hours, wake up in the morning, stay awake for 16-18 hours and then repeat. Actually, that is called a monophasic sleep cycle, which is only 1 of 5 major sleep cycles that have been used successfully throughout history.
The other 4 are considered polyphasic sleep cycles due to the multiple number of naps they require each day. How is this possible? How is this healthy? Well the most important of every sleep cycle is the Stage 4 REM (Rapid Eye Movement) sleep, which has been shown to provide the benefits of sleep to the brain above all other stages of sleep. When changing over to a polyphasic cycle, the lack of sleep tricks the body into entering REM sleep immediately instead of 45 to 75 minutes into sleep like in the monophasic sleep. This way, you still get the benefits of 8 hours of sleep without wasting all of the time it takes to get to REM cycles, resulting in a much more efficient sleep cycle. How to Develop a Photographic Memory. Doom Survival Guide - SAS Survival Manual. 6 Things Men Do To Get Laid That Science Says Turn Women Off. You may not realize this, but Cracked.com is all about getting you laid. Sometimes this is pretty obvious -- like when we give explicit dating advice or explain the mystical forces that secretly govern our libidos -- but even when we're talking about the horrible ways sex can go wrong, we're still hoping you can use the information we're sharing as an icebreaker to convince an attractive colleague to come back to your humble apartment and get freaky with kitchen utensils (we're not judging).
And in this Cracked Classic, we continue that noble tradition by reminding our male readers that some of their trusty "moves" are secretly sabotaging their bone-tential. So absorb this knowledge and go forth, trusty readers. Use our gifts of knowledge to bone. As we mentioned in this article, attracting a woman can be so easy you don't even realize you're doing it. Unfortunately, it turns out there are just as many things you're doing to repel women, again without even knowing it. See? How to Totally Troll someones Computer [pic] Email If you have ever wanted to carry out the ultimate practical joke using someone’s computer as your tool then this guide on how to troll a persons computer is something that you must read.
For more hints, tips, news and all things technology and geek related please follow us on Facebook or Twitter or subscribe to our feed. [via - neatoroma] Be Sociable, Share! Related posts: Grunge in 8 Simple Steps.mov. Male Portrait Retouch in 7 Steps (High Speed).mov. Photoshop Tutorial: Dark Art. Nicole kidman dark art photoshop cs5. Photoshop CS5 : Dark art. Slideshow: Places To Hide Cash. If you’re like most people, you keep your money in the bank (or several banks).
But you may also want keep a little stash at home, so that it’s easily accessible in case of an emergency. It used to be a habit we associated with our grandparents, but after the banking crisis of 2008 and 2009, even young consumers started keeping at least some of their cash within reach. Companies that manufacture and sell home safes reported significant sales spikes during the recession, a trend that wasn’t unusual: during tough, uncertain times, people prefer to keep their money where they can see it. Not everyone wants to spend a couple hundred dollars or more on a home safe, though. And stashing your cash in the mattress sounds a little bit trite: isn’t that where a thief would first look? With that in mind, we set out to find some creative places to hide your cash, in addition to the old mattress standby. Click through our slideshow for 13 more suggestions. How to crack a Masterlock. How to Combine 2 Images Seamlessly in Photoshop. Photoshop tutorial on dispersion effect.
How to Make an ATM Spew Out Money. Underground Security Training. The Open Organisation Of Lockpickers :: Meetings. This is a repository of the most up-to-date versions of Deviant's lock diagrams and animations. Seen in all of the TOOOL educational materials and slide decks, these files are all released under the Creative Commons license.
You are free to use any of them for non-commercial purposes, as long as they are properly attributed and the same freedom for others is maintained in all derivative works. Please note that these diagrams have evolved and developed over time. While Deviant is still proud of the older versions of his images, if you still have copies of legacy material they should all be replaced with the latest versions available here. Each image shown below in thumbnail form can be accessed in high resolution individually, or you can obtain the full set from the zip archive at the bottom of this page. Lock Basics and Mechanical Operation How pin tumblers are arranged and how locks operate (or fail to) with conventional keys Introduction to Lockpicking Manipulation-Resistant Locks.