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15 global challenges that cannot be addressed by any government acting alone

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  The 15 Global Challenges  from t he Millennium Project, a global participatory think tank. 1. How can sustainable development be achieved for all while addressing global climate change? 2. How can everyone have sufficient clean water without conflict? 3. How can population growth and resources be brought into balance? 4. How can genuine democracy emerge from authoritarian regimes? 5. How can decisionmaking be enhanced by integrating improved global foresight during unprecedented accelerating change? 6. How can the global convergence of information and communications technologies work for everyone? 7. How can ethical market economies be encouraged to help reduce the gap between rich and poor? 8. How can the threat of new and reemerging diseases and immune micro-organisms be reduced? 9. How can education make humanity more intelligent, knowledgeable, and wise enough to address its global challenges? 10. How can shared values and new security strategies reduce ethnic conflicts, terroris
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Kidde smoke alarm need to be replaced

By Jim Sheng
We do a lot of cooking, mostly stir-frying, the extractor fan has been broken since we moved in, so our kitchen alway very smoky, we got a new extractor fan installed recently, though.  The smoke triggers the fire alarm in the hallway. I normally don't bother to hush it, open the doors and windows instead. This fire alarm might be working too hard, it started chirping early yesterday morning, I tried the Hush button, it stopped chirping. Then started again yesterday afternoon, this time, pressing Hush button has no effect. Then we left it alone and went to shopping. When we came back, the annoying chirping has stopped. But it started again last night and woke me up, so I removed it to the garden shed. According to the instruction, "an intermittent chirp (every 45 seconds) indicates the alarm has reached the end of life and must be replace." The alarm makes a lot of noise when it's dying.

I checked the back of the alarm, there are short instruction on it. it 's Kidde's sealed, battery powered smoke alarm with hush. The lifespan of Kidde Wireless products is 10 years, so it must be replaced within 10 years.

Temporal (three pulse) alarm idicates particales of combustion have been detected. Flashing of the red LED every 45 seconds indicates the alarm is operating. Rapid flashing of the LED when the test button is pushed indicates alarm memory (The alrm has sounded since it was last tested). An intermittent chirp (every 45 seconds) indicates the alarm has reached the end of life and must be replace.

The hush button will silence the alarm for 8 minutes (dense smoke will override the Hush), during this time the red LED will flash every 10 seconds. Not recommended for operation below 40oF or above 100oF or in humidity greater than 85%. Clean your alarm annually using compressed air or a vacuum cleaner hose around the perimeter of the alarm. If cleaning does not restore the alarm to normal operation, the alarm must be replace.

The battery-powered alarms can be installed in any room in a matter of minutes – no wiring required. You simply screw the mounting bracket into the ceiling just as you would a traditional smoke alarm.

I wonder where can buy it, Homebase?

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