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News: Compound in a Frog's Defensive Slime May Treat Your Next Flu Infection

Our quest to find novel compounds in nature that we can use against human diseases —a process called bioprospecting — has led a research team to a small frog found in India. From the skin slime of the colorful Hydrophylax bahuvistara, researchers reported finding a peptide — a small piece of protein — that can destroy many strains of human flu and can even protect mice against the flu.

How To: Build a Stealth Port Scanner with Scapy and Python

As we're all aware, recon is vital to a successful hack. We need to know everything we can about the target in order to perform the best possible attack. Port scanning is a basic recon concept that is introduced very early in learning proper reconnoissance. The issue with port scanning is that is makes a lot of noise. Every connection to every port will be logged. This is where stealth scanning comes in. Also known as SYN or half-open scanning, stealth port scanning is a bit quieter, and is l...

How To: Calm Your Fear of Public Speaking for Better Presentations

Sweaty palms, stuttered speech, and terror blackouts: if you're someone who absolutely despises speaking before audiences, you've probably experienced side effects like these. No matter how well prepared we are, or how familiar our audience is, giving a presentation can be an experience more terrifying than death, according to psychologists. Unfortunately, it's impossible to avoid public speeches, but you can make these events less frightening with a few simple hacks.

How To: Breakdance

The popularity of breakdancing waned by the late 1980s, but has been recently rediscovered by a new generation of dancers who perform in professional competitions. While taking breakdance lessons might seem to violate the very ethos of the “streets” movement which spawned the genre, no one will ever know you learned the basics of breakdancing in a free online video course. Our expert dance instructor demonstrates the foundations of up-rocking, popping, locking, the six step, and power moves l...

How To: Do the Foxtrot

In this video series learn to dance the Foxtrot from professional dancers Teddy Kern, Lou Brockman & Heather Gehring, instructors at Dance Manhattan in New York City, as they demonstrate Foxtrot dance steps such as the Promenade, basic steps for men and ladies, twirls, rock steps and turns, and basic Foxtrot patterns.