Why do turbofan engines have 2 shafts, 1 for the main fan and low pressure parts, and then another for the high pressure compressor etc. Why cant it all be on one shaft? |
- Why do turbofan engines have 2 shafts, 1 for the main fan and low pressure parts, and then another for the high pressure compressor etc. Why cant it all be on one shaft?
- What is the difference between fluorescence and “normal” colour?
- If we were able to capture a blackhole 55 million light years away, how come we haven't been able to capture milkyway's blackhole yet which is just 25000 light years away?
- Is ultraviolet light an effective disinfectant against COVID-19?
- How do the RFID chips in contactless work without a power source?
- How is it that certain viruses, such as HPV or herpes, have some strains that only affect one area of the body?
- How do DNA tests not pickup the DNA from the cotton swab?
- Why is it impossible to determine the position and momentum of a quantum particle at the same time?
- How long do microbes live for? What’s the average lifespan?
- Does the output of a battery change as the battery depletes? If so, how is it engineered so that the battery will always give out an expected output?
- Why is the Lyman series so important in our understanding of the Reionization Epoch?
- What specific polypeptides are in Beans that make them “a good source?”
| Posted: 04 Oct 2020 07:55 PM PDT |
| What is the difference between fluorescence and “normal” colour? Posted: 04 Oct 2020 10:11 PM PDT How I understand it, an object has colour because it is hit by electromagnetic waves of various wavelengths, then the electrons in that object get excited. After some time the electron loses its gained energy and emitts electromagnetic radiation of a certain frequency unique to the chemical structure of the object. My question is how fluorescence (and phosphorescence for good measure) is any different to this principle. And if there is no difference, what makes it special? [link] [comments]  |
| Posted: 04 Oct 2020 10:30 PM PDT |
| Is ultraviolet light an effective disinfectant against COVID-19? Posted: 04 Oct 2020 07:32 PM PDT I've mostly seen information and news about using cleaning products, wipes, gloves, and masks to clean surfaces, but not the use of UV light. Is UV light not effective against COVId-19? [link] [comments]  |
| How do the RFID chips in contactless work without a power source? Posted: 04 Oct 2020 02:25 PM PDT |
| Posted: 04 Oct 2020 01:11 PM PDT For example, why can we inoculate against genital warts but not plantar or other forms? [link] [comments]  |
| How do DNA tests not pickup the DNA from the cotton swab? Posted: 04 Oct 2020 10:55 AM PDT When Cotten swabs are used in forensics, or COVID tests, are anything else that is meant to pickup DNA, how does the DNA from the cotton swab? [link] [comments]  |
| Why is it impossible to determine the position and momentum of a quantum particle at the same time? Posted: 04 Oct 2020 09:19 PM PDT |
| How long do microbes live for? What’s the average lifespan? Posted: 03 Oct 2020 08:32 PM PDT |
| Posted: 03 Oct 2020 07:38 PM PDT |
| Why is the Lyman series so important in our understanding of the Reionization Epoch? Posted: 04 Oct 2020 03:37 AM PDT |
| What specific polypeptides are in Beans that make them “a good source?” Posted: 03 Oct 2020 09:22 PM PDT I understand AAs, I'm looking for what proteins used by living beans are abundant. Like how amalose makes potatoes a good source of carbs. Is it mostly membrane bound like ATPase or what? [link] [comments]  |
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