Questions in the Science & Nature category.
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I'm not having luck with insect id sites. jpg
Mini McGee says, "I learned you can ask physics really weird questions! Like, how thick would a cardboard bridge have to be if it was over a 40-foot gap and could support the weight of an elephant?" [more inside]
If the growth is exponential, isn't even a relatively small amount of vaccination going to cut the exponent? Naively I would think that if the R value is, say, 1.1, then vaccination of 30% of the population would drop it to 0.8, which would extinguish the outbreak (or at least decrease it massively). What's going on? [more inside]
So, I put together a tea-light tempered glass kettle warmer from 2 elements I had around, one being sterling, the stainless top being the top - they fit together like one unit. The stainless top has holes pre-drilled in circular design. Question - how close can I place the tea-light under the stainless top under the kettle without it cracking? I want the kettle to keep as hot as possible for as long as the tea-light stays lit. I need the distance to be precise and scientifically based, because this is how the production is rolling. Thank you :)
When doing DNA recombination, how do people select what restriction enzymes to use? Is there like, a catalog of restriction enzymes I can look at and pick the right ones? [more inside]
What is inside this four kilo magnetic levitation device? https://virtualongroup.com/product/levitation-display-4-kg/
How flexible is an unconscious body under anaesthetic? [more inside]
I’ve never really understood what kind of weather or insect event occurred on a highway between Tucson and Phoenix back in the 90s. Surely, someone here can enlighten me. [more inside]
Has either (or both) of the Pfizer and Moderna vaccines formula changed over time. That is, if I got the vaccine tomorrow would I be getting the exact same formula as the person who got it first (once available to the public -- I think it was a nurse in NY)? Or, does the formula change slightly to take into account current data or current variants of the virus?
Is there a source that makes localized forecasts of weather and climate in the far (years to decades) future and presents them in a unified, data driven presentation? There are lots of broad models of global and regional changes presented in narrative form, but is there something that could, say, take an address and present a forecast or prediction of future climate? [more inside]
An article I read within the past couple years (sorry, can’t remember the source) mentioned a human genetics conference in the US. At this conference there was apparently not enough support for convening a panel to discuss the problem of racists who appropriate and disseminate twisted interpretations of legitimate research. So I have several questions: [more inside]
I am, for various reasons, in Columbia, Maryland in a neighborhood where none of yards or parks have the kind of landscaping I'm used to enjoying in the spring and I feel out of touch. I want to see things blooming--magnolias, other blooming trees, daffodils, irises, etc. What parks can I drive to nearby that have a good concentration of this stuff? Neighborhoods with nice landscaping is OK too. I would prefer not to go to Baltimore for Reasons. DC is possible but I'd l like closer options.
We use a wood stove for heat. We tap a single maple tree for fun. Before boiling the sap down in the kitchen, we passively reduce it most of the way in a pot on the wood stove. I'm wondering whether it reduces more if we do it in big batches or sequential small ones, and with or without a heat-powered fan. [more inside]
I have a set of anonymous survey data that was sent out via email and social media at two time points. Some of the people who filled it out at time point 1 probably did so again at time point 2, but because the survey was anonymous, I don't know the proportion of overlap. What is the best way to compare time point 1 and time point 2? [more inside]
occasionally, while going up or down stairs, I will forget how many steps there are. So I'll think I've hit the last stair, and move like I should be able to walk on a flat surface, and I'll stumble pretty badly when my foot doesn't connect with the ground where I expect. Ouch. A) I can't be the only person who does this, right? B) is there a more specific name for this phenomenon other than "spatial brain fart"?
I love reading The Prepared -- a great manufacturing and engineering-focused email newsletter with lots of fascinating links to articles, videos, and other content across an extremely broad range of topics. I'm hoping to find a similar newsletter (or blog / link aggregator) but with a broad medical/human health focus (or perhaps life science generally). Any recommendations? [more inside]
Is the Johnson and Johnson COVID vaccine safe for those at risk of HIV exposure? Back in October 2020 there was an article published in The Lancet highlighting a possible risk of increased susceptibility to HIV from adenovirus-5 vaccines like the Chinese and Russian Covid vaccines. The Johnson & Johnson vaccine is derived from adenovirus-26. Is there a reason to be concerned? [more inside]
Are there any studies that actual try to test for universal archetypes out the collective unconscious? Especially any that work across cultural lines with cultures that have not been heavily impacted by the west? [more inside]
I'm going to be working at an outdoor job site for a few days. The employees will be given "thin electric heated thermals" to wear- basically battery operated long johns. I'm 17 weeks pregnant but my workplace doesn't know. Is this safe? Can I make it safer? [more inside]
I am trying to find the margin of sampling error in a report about a survey. I can't find the relevant verbal phrases anywhere in the report. But is that what is represented by the percentage figures on Page 48 of the report? [more inside]