How To: Speedpaint
How to Speedpaint using Digital Painting.
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How To: Reuse outdated or old business cards in fun ways
If you've changed jobs or transferred your old Rolodex onto the computer, you will have a ton of left over business cards. Why not go green and reuse the cards as something unique? Check out this video for tips on what to do with all those tiny squares of paper.
How To: How To Make People Think You're Smarter Than You Reall
Whether you're on a job interview or a first date, follow these simple steps to give the impression that you're quite intelligent – even if you're quite average.
How To: Curb your appetite naturally
It's hard to lose weight if you're always hungry. Reduce food cravings naturally with these tips. Watch this video to learn how to curb your appetite naturally.
News: Probiotics Could Cut Sepsis in Infants for Just $1 a Day
Bacteria, viruses and other germs sometimes set off the immune system to overreact, producing a severe condition called sepsis. Sepsis is so dangerous that it is the leading cause of death of children across the world, killing a million kids every year, mostly in developing countries. Probiotic bacteria might be able to prevent sepsis and infections, but no large research studies have been done to find out whether that actually works. Until now.
Tasty Testing: Artisanal Cheese Reveals Microbial Secrets of Deliciousness
Whether your palate runs to domestic or imported, a piece of cheese can be a real treat for the senses. Its smell, taste, and texture are all parts of its appeal. A big part of what makes that savory wonderfulness comes from the microbes in and on the cheese. Thanks to a team of researchers dedicated to studying those microbes, we have a better understanding of their importance to cheese and us.
News: How Viruses Might Cause Brain Changes & Learning Problems
Despite mounting scientific evidence that viruses can cause changes in learning and memory, the reasons have remained elusive.
News: Happy News: Common Drugs May Save You from MRSA
Staphylococcus aureus is a widespread bacteria — about a third of us have it on our body right now — usually in our nose or on our skin. And it probably isn't causing an infection. But, about 1% of people who have Staphylococcus aureus present have a type that is resistant to the antibiotic methicillin.
News: Vaccine Can Prevent Bad Cholesterol from Accumulating in Blood Vessels, Potentially Prevent Heart Attacks
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.
News: First Effective Vaccine Against Gonorrhea Reduces Infection Rate by 31% — by Accident
Sex makes the world go 'round, and when it does, so does gonorrhea. Finally some good news on the growing menace of drug-resistant gonorrhea — a large, long-term study shows a vaccine may work in reducing the incidence of an increasingly dangerous infection.
News: Chemical Cocktail on Mars Makes Microbial Life There Unlikely
A new study casts real suspicion on the possibility of life on Mars. Why? It seems the surface of the planet may be downright uninhabitable for microbial life as we know it.
News: Hold That Breath — Fungus Goes Airborne Easier Than We Thought
Add breathing in your house as another possible danger to your health. If your home is sick, it's possible you could get sick too.
News: Frustrated by Acne? New Research Shows Skin Microbiome Makes a Difference
The squiggly guys in this article's cover image are Propionibacterium acnes. These bacteria live in low-oxygen conditions at the base of hair follicles all over your body. They mind their own business, eating cellular debris and sebum, the oily stuff secreted by sebaceous glands that help keep things moisturized. Everybody has P. acnes bacteria—which are commonly blamed for causing acne—but researchers took a bigger view and discovered P. acnes may also play a part in keeping your skin clear.
News: Hand Sanitizer Won't Stop an Office Outbreak—If Your Coworker Doesn't Care
There's now more reasons to make sick workers stay home—a new game theory study suggests adequate hand washing and other illness-aversion tactics aren't as useful as we thought to keep you from getting infected when a virus or bacteria is circulating.
News: Hospital Floors May Look Clean, but They're Teeming with Deadly Superbugs—Including MRSA, VRE & C. Diff
Hospitals are places we go to get well, and we don't expect to get sick or sicker there. But a study from researchers at the Cleveland Clinic, Case Western Reserve University School of Medicine, and Cleveland VA Medical Center in Ohio found that hospital floors in patient rooms were frequently contaminated with healthcare-associated pathogens—often dangerous multi-drug resistant bacteria.
News: Viral Infections Blur the Line Between Bacteria & Complex Life Like Plants & Animals
Using extreme time-lapse microscopy, scientists watched a virus take over a bacteria to create a cell that looked and functioned more like a plant or animal cell. True story.
News: How El Niño—& Climate Change—Kill People with Virus Epidemics
Using mathematical modeling, researchers suggest weather and warming created the "perfect storm" that drove the Zika outbreak in 2016.
News: TV Chefs Are Terrible at Handling Food Safely
The food TV chefs prepare make our mouths water. From one scrumptious creation to another, they fly through preparation without frustration or error. They make us think we can do the same with similar ease and delectable, picture-perfect results. Some of us have noticed, though, that these TV chefs don't always adhere to the same safe food handling guidelines we've been taught to follow.
How To: Improve Your Mood by Typing with Your Right Hand Only
I have an embarrassing habit: I type with six fingers. Just as your grandma pecks at the keyboard with her two index fingers, I rely solely on my index, middle, and thumb fingers only. But it's not as slow as you think, and I'm not the only one out there that does it.
How To: Subnet Using CIDR Notation
This video will show you how to subnet using CIDR notation. If you're curious about how to determine networks, subnet masks, broadcast addresses and what makes a host range valid. A great video for anyone currently studying computer networking technology.
How To: Get a job with Electronic Arts as a game designer
Want to break into the video game industry? Dream of a career as a game designer? This video shows you how you can become a game designer, in specific for the large game studio Electronic Arts. Find out what's in store for you and the ideal path of study.
How To: Subtract fractions with like denominators in basic math
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to subtract fractions with like denominators in basic math.
How To: Solve math problems with the commutative law of addition
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems requiring use of the commutative law of addition.
How To: Solve math problems with the commutative law of multiplication
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems requiring use of the commutative law of addition.
How To: Solve math problems with the associative law of addition
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve word problems requiring use of the associative law of addition.
How To: Solve math problems with the associative law of multiplication
From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this installment from Internet pedagogical superstar Salman Khan's series of free math tutorials, you'll learn how to unpack and solve problems requiring use of the associate law of multiplication.
How To: Convert from moles to grams in chemistry
Need to know how to convert between moles and grams for chemistry class? It's easy! So easy, in fact, that this free video chemistry lesson can present a complete overview of the process in just over a minute's time. For more information, and to get started converting between moles and grams yourself, watch this helpful study guide.
How To: Use radical notation to evaluate rational exponents
Learn how to evaluate rational exponents using radical notation in this free video algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test).
How To: Convert between scientific and decimal notation
Need to know how to convert between scientific and decimal notation? Learn how with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test).
How To: Find the domains of rational expressions in algebra
Learn how to find the domain of 3 different rational expressions that have quadratic expressions in the denominator with this free video algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just study for that next big test).
How To: Solve a word problem for the perimeter of a rectangle
Need a little bit of help figuring out how to solve word problems involving the perimeter of a rectangle? See how it's done with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Find the formula in an arithmetical sequence
See how to find the formula for an arithmetical sequence in college-level algebra given two terms in this free video college-level algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Find the common ratio of a geometric series
Interested in knowing how to find the ratio of a geometric series? See how it's done with this free geometer's guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Find the sum of an infinite geometric series
Need some help finding the sum of an infinite geometric series? See how it's done with this free geometer's guide. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Find determinants with a TI-83 calculator
Looking for a primer on how to find determinants using a TI-83 graphing calculator? See how it's done with this free video math lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Solve vector field integrals in calculus
This video demonstrates that, unlike line integrals of scalar fields, line integrals over vector fields are path direction dependent. See how to solve vector-field integrals with this free video calculus lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Do matrix algebra on a TI-83 calculator
Looking for a primer on how to solve matrix problems using a TI-83 graphing calculator? See how it's done with this free video algebra lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Find the slope of a line in mathematics
Need to know how to calculate the slope of a line? This free video algebra lesson will teach you everything you'll need to know. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).
How To: Compare fractions using inequalities
Compare fractions with inequalities! Watch this video lesson to see how. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test). With this free math tutorial, you'll learn how to evaluate fractions using inequalities.
How To: Find the domain of a function without graphing
Want to find the domain of a function without graphing it? Learn how with this free video lesson. From Ramanujan to calculus co-creator Gottfried Leibniz, many of the world's best and brightest mathematical minds have belonged to autodidacts. And, thanks to the Internet, it's easier than ever to follow in their footsteps (or just finish your homework or study for that next big test).