if the FM radio signal transmits information by varying the frequency, why do we tune in to a single frequency to hear it? |
- if the FM radio signal transmits information by varying the frequency, why do we tune in to a single frequency to hear it?
- AskScience AMA Series: We're health fertility Drs. and STEM advocates recently featured in NOVA PBS' "Fighting for Fertility" (link in description). AUA!
- What is the least complex organism that sleeps? What is the most complex life form that doesn’t sleep? Why couldn’t we have evolved from the latter? (I hate wasting my time on sleep.)
- What is the physical explanation behind the decrease of open circuit voltage as temperature increases in an amorphous solar PV cell?
- if mass curves spacetime why do planets in a vacuum follow curved paths?
- Why was the storage temperatures needed for the Pfizer vaccine so limited before? Why were other temperatures not tested during the trial phases?
- Does a satellite in a geosynchronous orbit experience time dilation relative to Earth's surface?
- How does your body store the immunity you get from a vaccination long term?
- What is the “Syncardidia” family of animals?
- How much sleep do bees need each day?
- How did the Mascarene Islands become the Great Indo-Pacific Melting Pot?
- Why are the rings of Saturn only orbiting it on one axis?
- why do mRNA vaccines need to be stored at -80C?
- Do all Black Holes spin the same direction?
- From what we know about how other viruses work, if someone has a mild case of covid, does that at all predict that if they later get infected by another variant they will likely have a similar reaction (ie, another mild case)?
- What instruments would be required to detect the presence of tectonic plates on exoplanets outside our solar system?
- Assume two people start moving from the equator of a sphere in a 'northward' direction; what do they have to do to ensure they stay parallel to each other without changing direction? What angle would their path make with the equator?
- Why do these images from the center of the Milky Way seem to display flickering luminosity?
| Posted: 19 May 2021 09:19 PM PDT |
| Posted: 20 May 2021 04:00 AM PDT Hi, I'm Dr. Cindy M.P. Duke, a Johns Hopkins and Yale-trained physician scientist and entrepreneur who's board certified in gynecology and obstetrics, and fellowship-trained in reproductive endocrinology and infertility (REI). I also have a PhD in virology. As America's only dual-accredited women's health fertility expert and virologist, I'm the physician founder and medical and lab director of the Nevada Fertility Institute in Las Vegas, Nevada, USA. My extracurricular work includes outreach to women and girls to encourage and foster their continued interest in careers in science, technology, engineering and math (STEM). I'm the host and producer of the 'Girl Powered Success & Survival International' aka GriPSSI Podcast, which is aimed at highlighting the work and dynamic career paths of women and girls around the globe. I'm also the producer of informative online programs aimed at debunking myths surrounding fertility and infertility among men and women in the diaspora and those within the LGBT community. I'm also actively creating and curating information about COVID-19 for the general public. Recently, Dr. Aimee and I were featured in the NOVA PBS documentary "Fighting for Fertility," which premiered on May 12 and can be streamed on YouTube. As a Physician Executive, I've served on a number of hospital boards. I'm also a contributor and member of the Women's Health Advisory Council (WHAC) for Healthywomen.org, a Medical Advisor for Proov, a member of the Medical and Scientific Advisory board for CONFIRMD by Buddy Cheque, and a member of the Forbes Business Council. I'm also the current Leader of the Las Vegas Chapter of the Society of Physician Entrepreneurs. Throughout my career I've been - and continue to be - the beneficiary of many outstanding mentors and role models. As a result, outside of my clinical work and research, I understand the value of giving back to my community, which I view as the global village. My hobbies include gardening, photography, baking, and writing poetry. Hi, Reddit! I'm Dr. Aimee Eyvazzadeh, a fertility specialist with my own practice in the San Francisco Bay Area. I specialize in IVF and have vast experience helping women over 35 realize their dreams of becoming a mother. I graduated from UCLA School of Medicine and completed my residency in Obstetrics & Gynecology at Harvard Medical School. I also completed a fellowship in Reproductive Endocrinology & Infertility and hold a Master's in Public Health Management and Policy from the University of Michigan. A large part of my public health mission is to educate people about their fertility potential and remove the veil of mystery surrounding reproductive medicine and technologies. In the nearly 20 years since I completed my medical training in 2001, I've become well-known for my innovative approach to fertility care that begins with diagnosis before treatment. I've met many women in their 30s and 40s who have struggled with their fertility and wished they had known more about it when they were younger. In 2012, a patient inspired me to launch The Egg Whisperer, a three-step plan for fertility testing, consultation, and tracking. Then in 2014, I extended my mission to help educate and empower young people in their 20s and 30s about their fertility and better plan for their future families by starting her now well-known "Egg Freezing Parties" in San Francisco. Fertility can be a heavy topic, so I wanted to create a lighthearted and fun approach to fertility education and understanding fertility preservation options. We'll be here at 4 PM ET (20 UT), ask us anything about our work in fertility, involvement in STEM advocacy work, or our involvement with "Fighting for Fertility"! Username: /u/novapbs [link] [comments]  |
| Posted: 19 May 2021 01:46 PM PDT |
| Posted: 20 May 2021 02:14 AM PDT I have researched and looked at several papers describing the effect of temperature on the Isc and VOC, and seen many numerical explanations as to why the voltage drops, with reference to I-V curve and other equations, but none actually described why this physically happens. What causes voltage to drop at increased temperatures? Is it the decreased bandgap? It would be appreciable if you could link any related papers that explain this phenomenon physically. Thanks [link] [comments]  |
| if mass curves spacetime why do planets in a vacuum follow curved paths? Posted: 19 May 2021 09:58 PM PDT |
| Posted: 20 May 2021 05:29 AM PDT |
| Does a satellite in a geosynchronous orbit experience time dilation relative to Earth's surface? Posted: 19 May 2021 05:59 PM PDT |
| How does your body store the immunity you get from a vaccination long term? Posted: 19 May 2021 12:46 PM PDT I hope this makes sense. How does your body store the immunity you get from a vaccination long term? Like if you go get vaccinated and 9 months later you are infected, how does it still know what to do to attack the virus? If you can, can you explain it like I am a small child because I have trouble understanding a lot of things. Thank you! [link] [comments]  |
| What is the “Syncardidia” family of animals? Posted: 19 May 2021 02:12 PM PDT I was looking at Wikipedia articles about Troglofauna and the like (Cave animals, in short) and I came across a reference in a Wikipedia article on cave bugs specifically, which lists some families of animals that contain troglobites. So the article goes on to list some crustaceans like "Isopoda" and "Decapoda", you know, familiar, well researched families. And then it casually mentions "Syncardidia" as well. My interest was piqued when I hovered over the hyperlink, thinking "I'm not sure I've heard of these before" and to my surprise, there is no Wikipedia article on them. So out of curiosity, I googled it, but only was directed to the article I was already reading because it mentioned them, as well as a "did you mean Syncardia" which when I clicked it gave me results for a prosthetic heart manufacturer or something. I've searched for the family specifically but I can find nothing on it where it isn't simply mentioned offhand in a list. The answer is probably entirely mundane, but I can't help but be intrigued by this apparently undefined (on the Internet at least) family of animals. [link] [comments]  |
| How much sleep do bees need each day? Posted: 19 May 2021 09:56 AM PDT |
| How did the Mascarene Islands become the Great Indo-Pacific Melting Pot? Posted: 19 May 2021 10:34 AM PDT The massive extent of extinctions on the Mascarene islands (Mauritius, Reunion, Rodrigues) can often obscure just how strangely diverse the origins of its many former occupants were, spanning all regions of the Indo-Pacific. Some like the Phelsuma day geckos are expected residents of the region as they also exist in nearby places like Madagascar and the Seychelles, but many others are very, very weird. To wit:
So how did the Mascarenes come to be dominated by all these animal groups from random portions of the world, as opposed to simply those from the nearby Madagascar and Seychelles islands? The Mascarenes themselves only formed about 10 million years ago in the Pliocene, so not a massive time either. [link] [comments]  |
| Why are the rings of Saturn only orbiting it on one axis? Posted: 19 May 2021 04:05 PM PDT Why are the rocks orbiting Saturn only orbiting on one axis so they form a ring? Why are they not spinning around it on different axes? [link] [comments]  |
| why do mRNA vaccines need to be stored at -80C? Posted: 19 May 2021 03:21 PM PDT I heard on the radio today that the latest tests from pfizer showed the mRNA vaccine could be stored at regular fridge temperatures (2 to 8C) for up to 30 days instead of the original -60 to -80C. which made me wonder: why -60 to -80C in the first place? I mean, at -10C the water is already frozen. it's just as frozen at -20C and at -30C and at -50C. so what's the difference if you store it in a regular freezer at -20C or in a special freezer at -80C? [link] [comments]  |
| Do all Black Holes spin the same direction? Posted: 19 May 2021 12:34 PM PDT Do black holes spin in different directions or so they all spin the same way? What would make them spin the other way? [link] [comments]  |
| Posted: 19 May 2021 08:33 AM PDT |
| Posted: 19 May 2021 04:19 PM PDT Would the Webb telescope have that ability, or just the ability to determine atmosphere composition? Can atmosphere composition indirectly point to plate tectonics? [link] [comments]  |
| Posted: 19 May 2021 01:43 PM PDT |
| Why do these images from the center of the Milky Way seem to display flickering luminosity? Posted: 19 May 2021 11:52 AM PDT When one of the central objects in this footage comes near the center of the galaxy, it speeds up. At the same time there's what seems like flickering changes in luminosity in various objects throughout the image. I assume it's just that the frames haven't been adjusted with each other to be "uniform". I'm guessing the earliest images are of less quality and once data increases, the "luminosity" also appears to go up. Amirite? [link] [comments]  |
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