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Se você estiver pensando sobre fazer seu próprio espelho parabólico, (se você está fazendo um fogão solar parabólico ou um caz simplesmente justo do `) está aqui o jogo grande dos videos que você pode consultar para a algumas pontas.

Você pode fazer um espelho parabólico de um prato velho da tevê satellite, ou um espelho do vanity do banheiro mas aquele não é divertimento. Fazer seu próprio espelho permite que você comece a curvatura que exata você necessita para o que quer que você pôde se queimar, cozinhar ou aquecer. É uma quantidade justa de trabalho, mas a energia que resultante o espelho produz é surpreendente.

através de faça

Relacionado:

Fogão solar parabólico

Fogões solares do Incline

Fogão solar da caixa da pizza

Here’s an interesting video that shows hackers sniffing the Wifi to retrieve Gmail cookie. Of course, this is when you are using Gmail without HTTPS secure access.

For secure Gmail, simply use https://gmail.com instead of http://gmail.com.

via hackszine

Related:

For analyzing your network whether that be Wifi or wired, you might want to consider trying the following TCP/UDP network analyzers.

Download Ethereal - I have used Ethereal for a long time before when I used to work as an embedded network engineer.  It’s a great tool and shows pretty much every packet your network passes around. (great for wifi)

Download Wireshark - Similar to Ethereal, I believe this tool is based on the same core as the Ethereal.

This has to be the coolest eco-frienldy device for taking a dump.  It’s an Eco Toilet that works by incinerating your poop to white powder.  Even better, the incinerated poop can be used for adding nutrition to your plants.

With the Eco Toilet in the works, we will no longer need long septic pipes to our houses, just one little toilet that does the job for you.

Of course, I have not tested this unit.  The only thing I am afraid of is the fact that it’s going to smell somewhat like burnt poop somewhere along the line but perhaps I might be wrong on this.

The toilets, one of several waste disposal products offered by the company, operate pretty much like the units found in homes across America today. But while those toilets use water to carry waste away, the EcoJohn Sr. is equipped with a propane-fueled burner.

After a user does his business, he closes the lid and a large, screw-like auger turns and carries the waste to the burn chamber where the propane burner then bakes urine, feces and paper into ashes.

“With this, if you have a family of four for a year and half, you get about a cup of white ash,” company president Frank Jacobsonsaid. “And because it’s burnt so intensely, you can take it and put it in a flower bed or outside or just dump it in the trash can. It’s completely biodegradable, so there’s not a problem for disposal.”

via neatorama, ocregister

Take advantage of this offer, a 4GB Flash Drive for $9.99.

PQI i221 4GB USB 2.0 flash drive is now introduced to the current memory market and it quickly becomes one of the fast growing portable storage devices for PCs. It is portable, durable, and convenient.
Only today so go here to order.

via crave

Now there’s a safe way to wear a power cord on your body while lookin’ good and not electrocuted.

This is a fun, cream-colored knitted power cord! It can be worn as a decorative skinny scarf, or even a decorative belt. Use it to pull back your curtains or replace that boring old tie. Whatever you choose to do, let your imagination lead the way!

via etsy

Here’s a funny backpack that might have bystanders stuffing it with recyclable cans and plastic bottles thinking you are a garbage man/woman.  I do really like the big sign though, you can’t miss it.

The “Big Kid Eco Pack” is a sturdy backpack created with nylon that is entirely constructed from recycled plastic drinking bottles. The trim is naturally biodegradable canvas.

According to the website: “Each of these packs keeps seven 16oz bottles out of the environment. Big enough to hold books, notebooks, lunch and a pair of sneakers.” We suspect that comic books, video games and assorted non-educational items will fit in there nicely as well.

via keetsa, greendaily, product page

At first I thought this was a sushi toaster as the toaster bag and sandwich together reminded me of my favorite ma-ke.  But it turns out it’s a toaster bag which will keep everything inside your sandwich together while heating it up nicely.  Sorta reminds me of Quizno subs and how they oven-bake everything before they serve it.

This is ironic find as I have just bought a brand new toaster couple days ago after probably 10+ years of not having one.

Whether you’re a student, teenager or busy professional on the go, why not invest in this neat little gadget that turns your toaster into a sandwich maker. This UK design allows you to simply add all your favourite fillings and toast them in a standard upright toaster.Toastabags - Alternative Healthy Sandwich Maker

Toastabags have many advantages: 1. Healthy eating, no added fats required2. Tough enough to be used over and over again3. Just wipe clean ready for next time4. Cook meals in a tiny, low-budget space Toastabag - it turns your toaster into a sandwich maker.

via ohgizmo, gearfuse, Product Page

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Here’s a really cool interactive multi-touch LED floor.  I wonder if they can turn this into an interactive game sorta like Nintendo Wii.

Sensacell’s latest contraption still manages to stand out by bringing back memories of when mouse trails really were the coolest thing about an operating system. Flashbacks aside, the installation — which is currently at the entrance to the Comunitat Valenciana in Spain — possesses over 1,000 interactive modules, each of which include capacitive sensors and a LED lighting system. The integrated tech enables it to recognize when someone is walking over it and consequently light up as if to leave an eye-catching LED trail of their path.

via engadget, prweb

With CFL bulbs radically saving energy these days, there’s another feature about the CFL bulbs that will make bulb designers go crazy with funky bulbs like the one pictured above.

via gizmodo, feber

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Wow, it looks like someone had to hook up all their old cellphones to an electric piano.  Each key on the piano responds to a dial button on one of those phones, creating a dial-tone.  Of course, there’s not enough dial-tones to cover all the notes.

The cell phone piano. Each key on the keyboard is wired into a key on a cell phone - as you play, you are also dialing. The channels are mixed together and amplified through speakers. Every sound the piano makes is generated by one of the four phones. The white keys play notes and the black keys are people saying the number out loud - English on the left hand and Spanish on the right. Some white keys were left over and I made those percussion instruments (the “*”, “END”, and “#” keys).

via make, mac