Lecturer Search Results

How To: Make a battery out of cans and water with Walter Lewin

The best physics lecturer, Walter Lewin, makes another wonderful physics demonstration after having read a lecture on batteries.

News: Apple Boosts Augmented Reality Team with Former Twitter Engineering Exec, Report Says

In hopes of strengthening its growing augmented reality team, Apple has reportedly hired Michael Abbott, an engineering and investment veteran with past ties to Twitter, Microsoft, Palm, and others.

How To: Like the Way You Smell? You're Making Yourself More Attractive

Each morning, we spend a significant portion of our time staring into the mirror. From choosing clothes and accessories to perfecting our hair, we try to make ourselves attractive. Yet catching others' attention doesn't have to rely on preening and primping. There's some truth to the maxim of beauty in confidence—all you need to make yourself more attractive is spray on your favorite scent.

How To: Become Amazingly Efficient with the Power of Google Sheets

Google Drive has been a gamechanger in the business world. First launched in 2006, Google Sheets has become much more than an alternative to Microsoft Excel. The powerful spreadsheet program is a boon for efficiency that's accessible wherever you have an internet connection—or when you have time edit offline.

How To: Security-Oriented C Tutorial 0x10 - Pointers and Addresses

In previous tutorials we have encountered these things called pointers and addresses but we still don't know what they really are. Let's learn a bit more to clear things up.

News: Microbes Are Everywhere—But Those on Your Cell Phone Can Be Dangerous, Especially During Cold & Flu Season

It won't come as a surprise to hear that your cell phone, tablet, and laptop are loaded with bacteria and other organic material. While most of these bacteria are harmless, there are good reasons to reduce the capability of your mobile devices to infect you—or other people.

How To: Generate Private Encryption Keys with the Diffie-Hellman Key Exchange

When we are building programs that communicate over a network, how can we keep our data private? The last thing we want is some other lousy hacker sniffing our packets, so how do we stop them? The easy answer: encryption. However, this is a very wide-ranging answer. Today we're going to look specifically at how to encrypt data in Python with dynamically generated encryption keys using what is known as the Diffie-Hellman key exchange.

How To: Here's How You Can Make a Real Difference in the Aftermath of the Michael Brown & Eric Garner Grand Jury Decisions

In the aftermath of the unindicted police killings of Michael Brown and Eric Garner, we've been told that the system worked as intended. When our legal system's outcome is at conflict with what a majority of Americans believe is just, it's clear that some changes are needed. But what specifically needs to change? And what can an average citizen with a moral and just cause do to prevent these kinds of tragedies from repeating themselves again and again?

News: Mathematical Knitting

Looking into mathematical quilting, I came across a community of mathematical knitters. Check out Dr. Sarah-Marie Belcastro's (research associate at Smith college and lecturer at U Mass Amherst) mathematical knitting resource page.

How To: Launch a Cork Rocket with an Ultraviolet LED Flashlight

Science is most marvelous when it's creating an explosion, even at the tiniest of proportions. In the video below, Daniel Rosenberg from Harvard's Natural Science Lecture Demonstration Services reveals the secret to shooting a cork rocket over twenty meters using a little chemistry and an ultraviolet LED light. Rosenberg, who's a research assistant and lecturer for the Natural Science division at Harvard, demonstrates what happens when hydrogen and chlorine are explosively "burned" together t...

News: Disposable Wedding Dress?

Want a dress that's so eco-friendly you can literally make it disappear after the ceremony? This new gown, from British researchers at Sheffield Hallam Unniversity does just that. It actually dissolves in water, reports the U.K.'sTelegraph. The dress is made with polyvinyl alcohol -- the same stuff found in laundry bags and washing detergents -- sewn into the fabric. That basically makes it water soluble, and dissolves it without harming the environment.

Scrabble Bingo of the Day: BURKITE

BURKITE n pl. -S a burker 63 points (13 points without the bingo)