When I turn on the rear defroster in my car I hear the engine RPM drop. Does increasing the demand on a generator increase the force needed to rotate it? If so, how? |
- When I turn on the rear defroster in my car I hear the engine RPM drop. Does increasing the demand on a generator increase the force needed to rotate it? If so, how?
- Humans seem to have a universally visceral reaction of disgust when seeing most insects and spiders. Do other animal species have this same reaction?
- How would a compass needle react to a magnetic monopole?
- Are real time strategy games biased towards what side of the map you start on? For instance, since we read left to right, would there be cognitive dissonance by moving right to left as opposed to left to right?
- What is the accuracy of weather forecasting over the decades?
- Why are some lines of the emission spectra more dominant?
- Does lying to a patient about survival rates of a disease affect said survival rate?
- Why don't video streams get corrupted by a bad internet connection, like when you delete information from a video file?
- What Impact Does Mineral Content Have on the Surface Tension of Water?
- What is a delocalised electron? And how is it related to metallic bonding?
- What causes the plumes of water vapour on Jupiter's Europa?
- Do blackout curtains block the invisible part of the electromagnetic spectrum (i.e. radiation of UV-length and shorter)?
- How do scientists isolate a single virus for study?
| Posted: 02 Mar 2020 11:30 AM PST Edit: the rpm dips only for a fraction of a second and then comes back up [link] [comments]  |
| Posted: 03 Mar 2020 04:59 AM PST |
| How would a compass needle react to a magnetic monopole? Posted: 03 Mar 2020 06:51 AM PST |
| Posted: 03 Mar 2020 05:50 AM PST I'm aware of a psychological advantage existing between a "red team" and a "blue team" in FPS. I'm wondering if there's a similar effect or if side has no effect at all. [link] [comments]  |
| What is the accuracy of weather forecasting over the decades? Posted: 03 Mar 2020 04:23 AM PST I was reading recently that predicting the weather up to 5 days out is about 90% accurate and to 7 about 80% accurate. With this in mind what I am curious about are 2 things:
[link] [comments]  |
| Why are some lines of the emission spectra more dominant? Posted: 03 Mar 2020 01:55 AM PST I was wondering about the complex looking spectra for most atoms and the colour we can actually see when doing a flame colour test. Firstly I find different spectra: Even on the less detailed one potassium seems to have lots of yellow emission, but its flame is percieved more lila. On the more detailed one there are tons of lines in red and green for sodium for example, which is clearly yellow/orange. Are some excited states much more probable, and different lines much more dominant? If thats the case, where do I find this information? I would assume it depends on temperature. Or has it something to do with how our eyes and brain process the mix of wavelengths? [link] [comments]  |
| Does lying to a patient about survival rates of a disease affect said survival rate? Posted: 02 Mar 2020 01:25 PM PST e.g. for a cancer with a survival rate of 15%, would telling the patient they have a survival chance of 90% improve their odds of survival through the placebo effect or otherwise? [link] [comments]  |
| Posted: 03 Mar 2020 06:15 AM PST This might require some explaining, so I will provide an example. Apologies if it is unclear. If you happen to be streaming a video from YouTube on cellular data, while you are driving in a fast moving train, some of the information might be unable to reach your phone. As a result of this, the video gets compressed to allow your phone to play it. Why is some of the video not corrupted, as a result of lacking information? [link] [comments]  |
| What Impact Does Mineral Content Have on the Surface Tension of Water? Posted: 02 Mar 2020 04:40 PM PST I may be using the term incorrectly, but the general question I'm wanting answered is whether or not mineral content might have an impact on the surface tension of water and it's inclination to pool together as it falls from a "porrus" surface. More specifically, I have a newish Technivorm Moccamaster coffee maker. Since the first pot of coffee I've noticed that the water does not drip as expected from the eight individual holes in the shower head. Instead, it all pools together into a single stream as it falls from the head into the basket. After some googling I found a post where someone used a thin coating of oil on the surface of the shower head, and it caused the water to drip properly from each individual hole. I tried the test myself using some mineral oil and, sure enough, it worked exactly like it was supposed to. I tried asking the crew over at r/coffee, but no one had any solutions. The thing is, different people get different results, and I know the "all the holes drip individually" camp can't all be using oil on their coffee maker every morning. You can find my post here (with a video in the comments): https://www.reddit.com/r/Coffee/comments/fc5ki3/moccamaster_showerhead_issues/ [link] [comments]  |
| What is a delocalised electron? And how is it related to metallic bonding? Posted: 02 Mar 2020 06:03 PM PST |
| What causes the plumes of water vapour on Jupiter's Europa? Posted: 02 Mar 2020 12:38 PM PST Is this water ejected out due to pressure? Temperature? Does Europa have geothermal activity? [link] [comments]  |
| Posted: 02 Mar 2020 10:42 AM PST |
| How do scientists isolate a single virus for study? Posted: 01 Mar 2020 10:05 PM PST I'm guessing that the human body has lots of different viruses present at any one time. In the case of COVID-19, for example, once they were suspicious that there was a novel virus present in a patient, how did they isolate and identify the new virus? How could they be sure they were looking at just the one they were interested in? [link] [comments]  |
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