Granada contra incêndio

Achei muito legal este aparato! Há tempos que imaginei algo parecido, mas para dizer a verdade, achei que era muita maionese… já vi bombeiros em ação em Londres, Milão e Colônia e percebo quanto nossos bombeiros são bravos. Com muito menos equipamento são capazes dos mesmos feitos, só que com mais valor.

Este tipo de equipamento não é só um auxiliar no combate ao fogo, é uma necessidade básica. O equipamento pode ser usado em empresas, escolas e até em casas particulares, ônibus e trens.

No site tem um vídeo que eu não carreguei. Vale a pena conferir. 10.

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Dec 9, 2008 06:05 PM in Everyday Science

Fire-fighting grenade

The FIT-5 fire-fighting technology that Scientific American.com wrote about on September 5 will make it’s prime time television debut December 12 at 10 p.m. as part of the Science Channel series Brink.

Made by Vancouver-based ARA Safety, the grenade-like gadget is designed to quickly extinguish flames in small quarters, thereby limiting injury to both victims  and firefighters. The company says the device—which costs about $1,300—can extinguish a class B (fuel-based) fire in a room 2,100 cubic feet (60 cubic meters) or less and reduce fire temperatures from 1,000 to 300 degrees Fahrenheit (540 to 150 degrees Celsius) in less than 10 seconds. The FIT-5 is also designed to control class A (wood-based) fires enough  to douse them with water.

More than 37 fire departments  in the eastern U.S. now carry Vancouver-based ARA Safety’s FIT-5 (for fire interruption technology). The device, available to firefighters for a year, is a means of knocking down or even extinguishing fires in rooms, basements and attics. The FIT-5 (price tag: around $1,300) is a nine-pound (four-kilogram) red disk that resembles a land mine and is deployed like a grenade. A firefighter pulls its cord and tosses the disk into the area engulfed in flames; within seconds the FIT-5 releases a wispy cloud of potassium carbonate, a flame retardant that suppresses combustion and disrupts fire at the molecular level.

FIT-5 image courtesy of ARA Safety

Como montar senhas diferentes e recordáveis

Encontrado no JJMELO.com »

The best password-remembering tip you’ll ever encounter password.

I’ll admit it. I’ve used the same password for many of my online accounts, which is terribly dangerous in today’s online-driven society. I changed this unsafe practice by coming up with a very unique system and in this article I’ll show you how to create unique and easy-to-remember passwords for all your online needs.

Imagine for a second having the same password for all your accounts, and somehow (either using social engineering or other tactics, such as a key logger) someone gets a hold of it and has locked you out of everything. Your Gmail, your online banking accounts, your goDaddy account and your domains, etc. Now imagine trying to regain possession of all of these accounts. Surely, a nightmare.

In an ideal world, we would have different convoluted (numbers, lower-uppercase, symbols) passwords for every single one of our accounts. Now, at least for me, it would be impossible to remember all of these given the numerous online accounts I’ve got all over the internet. Sure, you can use a program that automatically stores and fills in unique passwords for you, such as Roboform, but just imagine how horrible it would be if, one; your computer caught on fire or got stolen, all your passwords are all gone! Two: if someone got discovered Roboform’s master password. Either way, you’re screwed.

Now imagine a system where you would have easy to remember AND unique passwords for every single account. I’ve come up with the perfect solution. I’ll give you an example of how to achieve this, but remember, just create your own unique way. Just bear with me.

First of all, think of 2 memorable short words and a number. You can use 2 of your current passwords, just to keep things simple, and a number.

• first word: dog
• second word: red
• a number (someone’s birth year, reversed): 37

We’ve got dogred37. Remember, play with upper-lower case combinations.
Now we’ve got doGreD38. Lets take this combination and make it the base of our unique passwords, and this is how: For your Hotmail account.

Grab the first letter of hotmail, h and the last letter, l. Now combine it with your master password, reversed, and we get: LdoGred37h

• For Gmail: LdoGred37G
• For eBay: YdoGred37e
• For Amazon: NdoGreD37a Now there you have it.

Unique and easy to remember passwords. You’ll never have to click the “forgot your password” link and wait for an email in return EVER AGAIN! Even worse, you won’t be tempted to write down your password on that sticky note on your monitor.

Create your own system. Be creative, but not too creative, where you won’t remember your own combination. Keep it simple.

Please share (without revealing, obviously) how you create and remember passwords in the comments.

Gmail inseguro?

Google corrige brecha de segurança do Gmail , Carlos Machado, da INFO – SÃO PAULO – O Google corrigiu a falha que permitia a invasão de caixas postais no Gmail. [...]

Pois é, ninguém está livre da peste hacker. Já verifiquei meus filtros e estou limpo. É só que podemos fazer, reles law-abiding mortais.

Outro dia, quando fiz uma busca no google procurando secador de cabelos para minha filha, uma loja grafou no alto “Bom dia, Beatriz”. Ora bolas, nem logado na minha conta do Google eu estava. Como diria o grande filósofo Hiran, “eu nem nunca tinha visitado aquela loja”.

Breaches. Wake up Google! You are over-confident.