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Build a Gravity Assist

Build a Gravity Assist

Thumbnail-1 …build and operate a mechanical device to simulate, remarkably well, what happens when a robotic spacecraft takes advantage of a “gravity assist” on its interplanetary trajectory through the solar system. The device substitutes a strong, moving magnet for a massive orbiting planet, and a steel bearing ball (BB) for a spacecraft. The “magnetic assist” it provides to the BB is closely analogous to the “gravity assist” a spacecraft can receive from a planet moving in its solar orbit. Link.

Turn your Mac in to a phone…

Turn your Mac in to a phone…

Title-1 Cool tool- need to try this out– Jon’s Phone Tool (JPT) uses a Bluetooth mobile phone, your Mac’s modem, or speakers to dial the phone. JPT can also make calls via Vonage, CallVantage, Skype, Ovolab Phlink, Parliant’s PhoneValet, an Asterisk PBX server, IP-based telephony devices, or SIP softphones by Xten Networks, Inc. for use with many VoIP services. Link.

HowToons and the Marshmellow Hero

Images-12A Maker in our comments writes “I made PVC marshmellow guns for my two boys this weekend. At first, they had no idea what I was doing. After my 8 year-old saw the first mini-marshmellow fly out of the tube and smack the wall, he was hooked and so was his 5 year-old brother. Thanks for helping me be a hero for $5.71 (cost for 2 guns). My oldest slept with his gun last night and was amazed that when he woke up it smelled like marshmellows. “Yup,” I said, “I love the smell of marshmellows in the morning.” The male bonding has begun. Thanks for the Make”. Link.

Draw-It-On Dolls

Draw-It-On Dolls

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These dolls are blank and come with markers so your kids (or anyone else) can draw their own designs, faces and more on them. They’re $40 which isn’t too bad, but I bet you could get a doll pattern and make your own DIY Draw-It-On Dolls. Could be fun for kid’s parties and such. My version might have a LCD as a head and you could draw on that… [via] Link.

DIY Powerbook 65W AC Adapter Repair

DIY Powerbook 65W AC Adapter Repair

Repair4 This week my 2nd adapter shorted out completely. And since my battery only lasts about 7 minutes I was dead in the water. I really didn’t want to fork out more bucks on another new supply so I decided to crack it open. I was able to fix the problem and put it back together, just like new….sort of. First I had to crack open the casing. The supply was obviously designed to be disposable and the casing had no latches or screws holding it together. I had to hammer a thin screwdriver around the edges and eventually cracked the egg open. [via] Link.

DIY Fume extractor

DIY Fume extractor

Solderx1 …a very cheap fume extractor for solder fumes to avoid breathing this nasty stuff in all the time. Not only is it a nice ‘make’ hack, it also is a perfect tool for many more ‘make’ adventures. What you need: a slot type cooling fan, a vacuum cleaner hose, some zip ties, hot glue, cardboard or flexible plastic sheet and a power supply. Link.