Q. Ever since we had our daughter, my husband is obsessed with eliminating any sources of radiation in our house. He wants to turn off our wireless router, stop using cell phones, and stop using the video baby monitor in the nursery because he has read that all of these things give out harmful amounts of radiation, especially impacting the development of children's brains.
Is there any validity to his concerns? Or is he just being an overprotective parent?
Is there any validity to his concerns? Or is he just being an overprotective parent?
A. he,s a little overboard, and misdirected. you get much more radiation on a long distance plane flight than you do from those sources. living in high elevations is a greater risk than living downwind from a nuclear power plant. you get more radioactivity from living downwind of a coal fired power plant.
How do I know if I need a lamp for my baby chicks because my country is really hot!?
Q. I live in a very hot country and it is summer at the moment. It is really hot and humid and I don't really think I need a lamp for my baby chicks when they arrive. I am going to put them in a cardboard in my room and my room is even hotter because I have my computer running all day, a TV, playstation, laptop which are normally on all the time.
Would I need a lamp?
Thanks.
Would I need a lamp?
Thanks.
A. Even if it is hot during the day, it is often necessary to run a heat lamp at night when the temperature starts to drop. A brood pen needs to be kept at about 98 degrees during the first week of a chick's life, dropping by about 2 degrees each week after, until the pen temp is equal to the outside temp, or until the birds have grown their secondary feathers.
New chicks are very succeptible to drafts, chilling and temperature fluctuations. Their pen needs to be kept at a constant temperature or you risk killing them. If it's 80 degrees outside, they may still need a heat lamp placed at a safe distance to give additional heat. If the chicks were with their mother hen, they would still spend a considerable amount of time underneath her to keep warm. Young chicks can't regulate their own body temperature well until their adult feathers have started to come in.
The easiest way to monitor your brood pen temp is to place a reptile thermometer at the bottom of the pen. Check the temp regularly during the day - sunlight coming in through a window may be enough to alter the temp and possibly overheat your chicks. You might need to shut the lamp off for part of the day, then turn it back on as the sun changes position, or even run it all night.
I'd recommend getting a 250 watt red brood lamp and a reptile thermometer before your chicks arrive.
Remember that your chicks need a CONSTANT temperature, and the only way to guarantee that is by using an outside heat source.
Good luck and enjoy your peeps!
New chicks are very succeptible to drafts, chilling and temperature fluctuations. Their pen needs to be kept at a constant temperature or you risk killing them. If it's 80 degrees outside, they may still need a heat lamp placed at a safe distance to give additional heat. If the chicks were with their mother hen, they would still spend a considerable amount of time underneath her to keep warm. Young chicks can't regulate their own body temperature well until their adult feathers have started to come in.
The easiest way to monitor your brood pen temp is to place a reptile thermometer at the bottom of the pen. Check the temp regularly during the day - sunlight coming in through a window may be enough to alter the temp and possibly overheat your chicks. You might need to shut the lamp off for part of the day, then turn it back on as the sun changes position, or even run it all night.
I'd recommend getting a 250 watt red brood lamp and a reptile thermometer before your chicks arrive.
Remember that your chicks need a CONSTANT temperature, and the only way to guarantee that is by using an outside heat source.
Good luck and enjoy your peeps!
Can you recommend a baby monitor (preferably a video monitor) that works from very long distances?
Q. We just moved into a new house where our master bedroom is completely on the opposite side of the house from our son's room. The moniter that we have now works only sporadically (most of the time it flashes "out of range"). I really need one that will work well! It probably doesn't help that our bedroom is converted from the old garage, so there are literally 2 brick walls between our room and our son's room. Please help! Thank you!
A. I have a Mobi and it works great in my house. My house isn't huge but I can be upstairs and my daughter's room is downstairs on the other side of the house and it is clear. During the day the pic is in color, but turns to black and white at night. The only static has been when we have it too close to our remote controls and cell phones. It will get fuzzy but we move the items and it is fine.
Not sure if it will work between brick walls, but I have been out in our garage on my treadmill and had no problem.
http://www.walmart.com/ip/Mobicam-Baby-Nursery-AV-Monitor/10263832
Not sure if it will work between brick walls, but I have been out in our garage on my treadmill and had no problem.
http://www.walmart.com/ip/Mobicam-Baby-Nursery-AV-Monitor/10263832
How do you connect a sensor to a radio transmitter and programming it to transmit one task only?
Q. I badly need advice on how to do this for our science project. Our project is to monitor garbage through radio waves and sensors... the problem is that how do we connect the sensor to the transmitter and how do we get to program it to transmit the garbage levels... and one more thing... What Type of sensor do we use?
A. Sounds like a cool project that's best if broken down by section.
The key to a successful science project is to keep it as simple as possible while demonstrating one or more concepts. Cost will also be a concern. The trickiest part will be your radio link since there are all kinds of government regulations about what you can and cannot do especially at the unlicensed level. Instead you want to find a transmitter and receiver that already work well together over short distances. Garage door or car alarm remotes can be difficult to work with on the receiver end. A pair of cell phones might work if you have unlimited minutes to burn. Low power toy walkie talkies might work if you had a way to push the transmit button for short intervals. An iPod type transmitter and FM radio might work together. So would a couple of WiFi enabled laptops networked together through a wireless router, but now we're getting complicated again. A battery powered wireless baby monitor just might be the ideal solution.
Note that most of the transmit/receive link possibilities mentioned above involve audio. You'll want to use your garbage level to control either the frequency or volume of the audio you transmit. Volume is probably the easiest since you can use a relatively simple meter circuit at the receiving end to measure it.
One of the nice things about a science project is you can control many of the parameters. Use a small waste basket as your garbage can and use something that packs relatively uniformly like tennis balls or crushed aluminum cans as your garbage. Now all you need to do is weigh them to know how full the can is.
Place your garbage can on a plywood platform hinged at one edge and held up by springs. Get one of those slide style volume controls and rig it so that the slide moves as the platform edge moves under the weight of the garbage. Adjust the tension and number of springs as needed.
You'll need an audio source such as a simple oscillator or a steady tone saved on an MP3 player. This feeds the volume control on you platform scale which in turn feeds your garbage monitor transmitter (in place of the microphone).
The volume at the receiver (after substituting a meter for the speaker) will track the weight of the garbage. Lookup LM3914 for circuits that use LED's that you can label from empty to full.
I'm assuming that someone in your group can handle the basic electronic connections.
Now go get that A.
Don
The key to a successful science project is to keep it as simple as possible while demonstrating one or more concepts. Cost will also be a concern. The trickiest part will be your radio link since there are all kinds of government regulations about what you can and cannot do especially at the unlicensed level. Instead you want to find a transmitter and receiver that already work well together over short distances. Garage door or car alarm remotes can be difficult to work with on the receiver end. A pair of cell phones might work if you have unlimited minutes to burn. Low power toy walkie talkies might work if you had a way to push the transmit button for short intervals. An iPod type transmitter and FM radio might work together. So would a couple of WiFi enabled laptops networked together through a wireless router, but now we're getting complicated again. A battery powered wireless baby monitor just might be the ideal solution.
Note that most of the transmit/receive link possibilities mentioned above involve audio. You'll want to use your garbage level to control either the frequency or volume of the audio you transmit. Volume is probably the easiest since you can use a relatively simple meter circuit at the receiving end to measure it.
One of the nice things about a science project is you can control many of the parameters. Use a small waste basket as your garbage can and use something that packs relatively uniformly like tennis balls or crushed aluminum cans as your garbage. Now all you need to do is weigh them to know how full the can is.
Place your garbage can on a plywood platform hinged at one edge and held up by springs. Get one of those slide style volume controls and rig it so that the slide moves as the platform edge moves under the weight of the garbage. Adjust the tension and number of springs as needed.
You'll need an audio source such as a simple oscillator or a steady tone saved on an MP3 player. This feeds the volume control on you platform scale which in turn feeds your garbage monitor transmitter (in place of the microphone).
The volume at the receiver (after substituting a meter for the speaker) will track the weight of the garbage. Lookup LM3914 for circuits that use LED's that you can label from empty to full.
I'm assuming that someone in your group can handle the basic electronic connections.
Now go get that A.
Don
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Title Post: How much do we need to monitor radiation in our home?
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