So, most electrical heaters are extremely close to 100% efficient in terms of converting electrical power into heat. But is this true of fan heaters as well? In other words, how much energy goes into operating the fan as compared to the heating of the elements? [more inside]
So, imagine we have a 100 meter tall tower, a 100 kg weight, and a rocket. Consider the following two, very similar scenarios... [more inside]
This is somewhat of a strange post, but I thought that I would post it anyways. The bottom line is that I never get tired anymore. I still sleep at night, but I don't feel any different when I go to bed then when I wake up in the morning. For nine years I used to be on Adderall for ADHD and I have been off of it for almost two years now. [more inside]
I started cymbalta in February. I have been diagnosed with dysthymia, low vitamin D, diabetes, and Hashimotos. I take metformin for diabetes and klonopin for anxiety as needed, which is once or twice a month. Two weeks later I had a friend staying with me and while she was there I woke up regularly. I ate breakfast every morning and had a nice routine going. I got a lot of exercise and felt less avoidant and irritable than usual. [more inside]
I've got a crawlspace in a 1940 home that is reasonably warm and dry, but I want to seal against airflow and spiders. Is it crazy not to insulate as well? Everything I've found talks about sealing AND insulating. I feel like I can get the sealing done now, and might insulate at a later date. [more inside]
Since quitting caffeine a few weeks ago, I've lost all motivation to do anything except lie in bed doing nothing all day. [more inside]
Asking for a friend: I have been in a challenging engineering graduate program for about three years now. Two years ago, I was diagnosed with acid reflux / GERD. It seemed to be chronic but I found I could manage it with OTC medications and eliminating coffee and other caffeinated drinks from my diet. If I do this and don't overeat, I barely notice any symptoms. [more inside]
Share your experiences with heater replacement and home energy audit rebates. We are in the process of vetting contractors to replace our home heater - an oil to gas conversion - and one of them is proposing some home energy remediations, citing saving by taking advantage of NJ's clean energy program. [more inside]
We live in a 3BR townhouse. Our electricity usage spiked really dramatically in December, and it's stayed up in January. I cannot fathom what is causing such a spike, but I don't know a lot about electricity usage. Details below. [more inside]
Help me understand the heating and cooling system of this house we just toured. [more inside]
My I-Phone was stolen last night. I have the "Find I-Phone" app and know where it is right down to the address. The phone is 3 years old and outside of a cracked front it works well. [more inside]
The other day I read this thing about ATOMIC GARDENING And apparently this controlled mutation is the reason we have ruby red grapefruits. So my question is what ELSE is atomic that I didn't know about? Is there anything else using radiation unconventionally or atomic technology in novel places I didn't suspect?
I have a very mentally taxing/stimulating job. When I get home from work, I can't muster the mental energy to do anything but surf the internet. Even a supper with more steps than 2 (open and heat) seem overwhelming. Physically, I feel fine. I'm not physically tired, just completely mentally tapped out. It's starting to cause some tension in my relationship because I am no longer pulling my weight around the house. Leaving my job is not an option: it pays well and I love the work. I am looking for ways to have more mental energy at the end of the day to perform multi step tasks around the house and/or socialize. Any tips? Organization? Meditation? How do you get (more) stuff done? Thanks!
I noticed something about myself yesterday that I think I need help with. Basically, no matter how happy I am at the start of the day, I am often emotionally and physically depleted by the end of it. How can I maintain my 8:30am levels of optimism, competence and energy so they're not completely gone by the afternoon? [more inside]
How can I make myself more energetic on any given day, without making myself more agitated or anxious in the process? [more inside]
I was reading something by someone who "did the math" for leaving a 400 Watt PC on for an entire year, and I thought his rate of 37 cents per kilowatt-hour was high. [more inside]
I am faced with a hugely exciting, complex, challenging project of my own devising. It's a chance for me to build my dream and ... I'm sitting here crying instead of working. [more inside]
Our house is a small Cape, with a crawlspace attic. We’re going to get a home energy audit in the next couple of weeks, and the insulation of the attic is of particular concern for us, as it really gets quite warm on our second floor. Can I get your insulation wisdom here? [more inside]
I need suggestions for what I should eat/drink prior to a very short but intense cycling workout. [more inside]
Looking for quality sources and data regarding energy efficient and energy outputs. Details inside. [more inside]
I'm getting mystery pains as I mentioned in another question. I'd like to treat this with an energy modality, e.g. Reiki. I am based in the UK. Ideally I would like to learn online. [more inside]
Why am I getting this medical effect from vitamin pills, and should i be worried? [more inside]
We were approached at a street fair by a somewhat high-pressure salesman. In its self something of a red flag. However, their rates and espoused business practices were intriguing. On paper (online), they seem like a good choice, especially if I'm interested in green energy. I am aware that they're owned by NRG, but this doesn't put me off on its own. [more inside]
It feels like other people's emotional energy is causing me muscle soreness. What can I do? [more inside]
I graduated college a year ago, and I'm having trouble acclimating to my new life. Plenty of special snowflake info inside, but I would love any tools or anecdotes about how your life changed after college. [more inside]
Mrs. HeroZero and I just moved into a lovely new Chicago apartment about two months ago. However, our landlady (who lives on the third floor of this three-flat apartment building) has passionate environmentalist feelings. Though we share many aspects of her politics, it's made certain aspects of living here difficult. [more inside]
I've had a difficult time over the last while and I feel like I've completely run out of steam. How can I keep going and accomplish all I need to? I feel all my motivation is gone and frankly I just want to hibernate but obviously I can't. Have you ideas about how to keep putting one foot in front of the other? [more inside]
It's spring and the plants and trees which have been bare for months are bursting into life. I've been thinking it must take a lot of energy for a tree to go from having no leaves at all to being covered in too many to count in a relatively short period of time. But how much energy exactly? [more inside]
My friend theorizes that a miniaturized dam, which he calls "The Waterboy", would be a great form of alternative energy and wanted to get feedback on whether this idea would actually work. This document he drafted up describes The Waterboy further and includes calculations.
Stephen Hawking has proposed that our universe has a total energy of zero, which allowed it to Bang into existence without violating any laws. Is this thesis falsifiable? If so, what is an example of something that might happen, which would contradict the zero-energy hypothesis? [more inside]
I want to create a Rube Goldberg machine (or something like it) with my students. I am not the best at teaching hands-on stuff/doing experiments and things that involve design, so I am looking for help and suggestions. [more inside]
Like most women, I experience some mood variations throughout my cycle. Right before my period actually starts, I feel a burst of energy which makes me feel more creative and productive. [more inside]
Please help me figure out how to heat my drafty San Francisco 1-bedroom apartment without breaking the bank. Details inside! [more inside]
How do I compare energy usage between building in different locations? [more inside]
Help me understand why the energy company seems to (somewhat randomly) choose to estimate my energy usage rather than billing me for actual usage. [more inside]
is this ConEd solutions on the level, as providing more eco-friendly electricity than my regular Con Edison provider? What are the pros and cons? The agent who is trying to sell me this says my bill will go up a little. This is for residential usage in New York City. Any experience or information on this is much appreciated.
So I have been working on my house and making it energy efficient. It is now time to replace the basement windows in my split level. One double wide window needs to be replaced with one that opens to meet code, but the other three single wide windows do not. Would I be better installing glass blocks in those three, not vented, or installing either a picture, slider, or another type of insulated vinyl replacement window? If I should do a replacement window, which type should I use? [more inside]
How to 'fake it' and keep faking it/how to be more high-energy in social interactions [more inside]
For some time now, I've been getting my AM caffeine through these fancy "sparkling energy water" drinks I get at the health food store. They are totally unsweetened carbonated water with caffeine. These drinks are expensive, and earlier tonight my husband and I had a come to jesus talk about our out of control grocery budget. My daily sparkling energy water can has got to go. [more inside]
Physics geeks! Help me save energy! How do I estimate how much less energy will be used by light siding vs gray siding, based on an experiment with small boxes? I made some identical boxes, put them in the sun, measured temperatures, and am trying to figure out how to scale up. The net has info about different roof colors, but not siding colors. [more inside]
Every year my boyfriend and I make up a theme for our resolution for the year. 2014 is going to be "I Sing The Body Electric." We then do things along this theme. The idea for 2014 is that we make our bodies feel awesome, inside and out. What fun and transformative things should we do? [more inside]
The Mrs. and I are planning to build a house next year on some land that we bought recently. What should we know about house building before undertaking this massive endeavor? [more inside]
What is "electric potential"? I've dug through the internet, gone to tutoring, asked my teacher, and nothing has helped. [more inside]
I have been working at the limits of my abilities for a decade or more. I am running out of steam and need a long break, but family and work responsibilities prevent that. What immediate, short-term tricks do people have to boost their energy levels? [more inside]
I am a big believer that motivation is everything. I have some things I want to accomplish and am in a motivational slump of sorts (call it apathy). I am not depressed. What are some motivational tricks or strategies you use to build motivation levels? For example:listen to "eye of the tiger" real loud (i've done this).
Low energy/mood/will in the past weeks- now feeling the desire to get back on track, but I'm unsure about the way to go about it. I'd love to have your take on some ideas I have and how to put them into practice. [more inside]
On average, or an educated guess, how much energy does it take to store a terabyte of data? I don't mean how much does storage cost. I want to know what the environmental impact of a terabyte of data. [more inside]
I'm a newish mom who works from home. Mini-me sleeps through the night and we get plenty of rest, but I'm still utterly exhausted every day and it seems to be getting worse. I know it's time to start getting more exercise (I work from home now so I feel like I'm just on my butt all day every day) but I need delicious facts to convince my brain to go to the damn gym already. What type of exercise should I be doing and how long do I have to do it before I start to see an improvement in my energy levels?
I just got an automatic watch and the fact that it powers itself via small movements of my wrist has me fascinated, and also puzzled that we haven't really taken more advantage of obtaining small amounts of power via changes in kinetic energy (if thats the right term?) [more inside]