 | Announcement | |
| "Open Happiness" from a Renewable Bottle |
| Coca-Cola is looking to make a new plastic drink bottle derived from completely renewable materials. The latest entry in the E&E blog tells more. Check it out here. |
| The Super (Science) Bowl, part one |
| Here is HUSH's take on some interesting Super Bowl and science cross-sections. And no, he doesn't explain point spreads. That you'll have to learn on your own. |
| Household Bleach |
| By Sid_Sidow in General Discussion |
Just wondering if there is any quick/efficient way to test 'quality' or 'strength' of bleach. I have contacted XXX brand and they tell me shelf life is 1 year. (bottle open or closed!? Most EVERTHING degrades once opened) My equipment requires bleach to clean the protein material out of the system ... more |
| Battery Boost Charging Current |
| By vinsue in Electrical Engineering |
I am having a 48V DC UPS system with 2 rectifier/chargers and 2 battery banks NiCd 1540 Ah each bank. Each charger has to be rated to charge both the battery banks and supply the load of 80A in case 1 charger is out of service. After a shutdown if the batteries are discharged down to 10% of their ca ... more |
| Retrofitting of Hydraulic System |
| By ralish in Mechanical Engineering |
Hi, I have a very old hydraulic system, almost 25 years old, which i need to retrofit bacuaise of inefficency and leakage. As we cannot afford to go for completely replacing the system bcz of financial constraints, i need to do minimum modification. Mainly i observe there is a continous leakage f ... more |
| Deleting a BOM Item |
| By Rotag1 in Mechanical Engineering |
What is the industry standard or common practice when items are removed / deleted from an assembly during a revision using 3D CAD modeling application and updating the BOM on the drawing? Example: An original released assembly has 10 components and the drawing BOM lists them items 1-10. An engineer ... more |
| USA Residential Supply - Single or Three Phase? |
| By malby in Electrical Engineering |
Hi all I am conducting research in the UK on the Low Voltage Distribution Network and am using an American software package to model cables. In the UK it is normal for residential homes to have single phase supplies and contain two conductors; live and neutral. I would appreciate some guidance ...more |
| Centrifugal Pump Impeller Size |
| By Sajid Hussain in Mechanical Engineering |
Hello Everyone! Can somebody help me to know if the Running Pump Impeller Size is reduced from 11in to 10in, what would be the effect on the discharge pressure whether it would be increased or decreased; Regards Sajid Hussain |
| Internet |
| By ronseto in General Discussion |
I want to use the internet for E-mail and for researching topics. I want to just access catalogs without being bombarded by commercials and googled for my preferences. Is there an alternative to google that will preserve my privacy? |
| Flow control |
| By AKUR in Mechanical Engineering |
Hello everyone, I am working on a hobby project and I have two flow streams. I need that the flow in srteam 1 be a percentage of the flow in stream 2. I am looking for some exquipment or a set-up that would make this possible. Any help/ideas would be appreciated. |
| Autocad 2003 Question |
| By ronseto in Software & Programming |
I did a detail and assembly drawing that was drawn using .750" plywood as the building material. Is there a command that will regenerate the drawing based on using .719" thick plywood without redrawing and redimensioning the whole drawing? |
| Ability to plug into multiple power sources |
| By szwasta in Electrical Engineering |
The requirement: equipment shall be designed to be powered from standard diesel or multi-fuel, 50/60 hertz (Hz), 110 to 240 volt alternating current generators, DoD 50/60 Hz Tactical Quiet Generators, or from equivalent commercial power sources Challenges: 1) Power conversion: Yes there are UPS' ... more |
| Dirt into cement? |
| By goosemydog in General Discussion |
I read an article a while back that explained how engineers used a particular microbe to reinforce and earthen dam that was starting to fail. They said the microbe action turned the dirt into a concrete-like material. I can't find the article and would like to. Does anyone have a link to it that I c ... more |
| Can Your Robot Do This? |
| posted in Speaking of Precision |
QinetiQ makes a line of "Throwable robots." Check out the video: Dragonrunner The Dragonrunner has multiple camera and payload options. While this robot is not used to maufacture precision products like the big yellow ones we're used to seeing in our shops, this is an ideal embodiment of a ... more |
| "Open Happiness" from a Renewable Bottle |
| posted in E&E Exchange |
"Life tastes good" for those who drink Coca-Cola, but the soda company "can't beat the feeling" of making a completely renewable plastic bottle in order to "make it real" for consumers to "enjoy". Slogans aside, my favorite soda (pop, soda-pop, soft drink, carbonated beverage, pick your poison) ...more |
| The Super (Science) Bowl, part one |
| posted in Sports, Fitness, and Nutrition |
This Sunday brings one of the most honored feasts of annual rite. Millions of individuals will fill bars, homes and man caves to remotely experience the exhilaration of violent contest between worthy foe. The spectacle will be celebrated with food, drink, gambling and camaraderie. THIS… IS ... more |
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