How will today’s media be preserved in the future? |
- How will today’s media be preserved in the future?
- How does a gear train increase torque?
- What are the relationship between mountains and earthquakes?
- What is the highest temperature you can cool with lasers?
- How does sepsis occur if there is little free iron in blood?
- Why is the James Webb Space Telescope being placed at the L2 Lagrange point? Why isn't it being placed at L4 or L5?
- What are the relativistic limits to the size an electrical grid?
- How were the first black holes formed?
- What percentage of COVID deaths are in the “No Underlying Conditions” category?
- What happens to COVID variants that doesn't become or stops being the dominant strain?
- Is there any kind of link between schizophrenia/psychosis and believing you have psychic abilities?
- Is the Sun moving relative to everything else?
| How will today’s media be preserved in the future? Posted: 17 Sep 2021 01:11 AM PDT Will every video on YouTube be saved in a historical archive somewhere many (hundreds to thousands) of years in the future or will we lose majority of videos, movies, music etc? [link] [comments]  |
| How does a gear train increase torque? Posted: 17 Sep 2021 02:31 AM PDT Inspired by the Brick Experiment Channel, I've been playing around with my old Lego Technic, and gears just seem like magic to me. If I attach a rotating arm to an electric motor, the motor can barely lift the arm. But when I convey the rotation through a series of paired gears (small->large), the motor suddenly can easily turn the heavy arm, as if I'm generating free power out of nowhere. How does this work? Is it something to do with leverage? [link] [comments]  |
| What are the relationship between mountains and earthquakes? Posted: 17 Sep 2021 05:08 AM PDT Would the world be a more "shaky" place without them? [link] [comments]  |
| What is the highest temperature you can cool with lasers? Posted: 17 Sep 2021 02:31 AM PDT I know it's possible to cool down atoms by using lasers to negate momentum in 6 directions. What the highest temperature you can start this process from? In addition, what the largest object size you can cool with this technique? [link] [comments]  |
| How does sepsis occur if there is little free iron in blood? Posted: 17 Sep 2021 02:10 AM PDT |
| Posted: 16 Sep 2021 03:56 AM PDT From Wikipedia:
This implies that the telescope's placement has to do with temperature management for the optical assemblies onboard (which need to be kept below a certain temperature since they're more sensitive in the infrared range). Won't stationkeeping at L2 require a lot of fuel over time, since it's an unstable equilibrium point? Wouldn't it require basically no fuel to effect proper stationkeeping at the L4 or L5 points? It doesn't seem like we'd have any easy opportunities to refuel the telescope's propulsion system when it's 1.5 million kilometers away. [link] [comments]  |
| What are the relativistic limits to the size an electrical grid? Posted: 16 Sep 2021 11:49 AM PDT If two power generators connected to the same grid are sufficiently far apart, each should see the other as out of phase, due to the non-instantaneous speed of transmission. How big can a grid get before this becomes a problem? Does it also depend on the physical distribution of consumers on the grid? Is this the limit to actual existing grids, or is the limit some other factor? [link] [comments]  |
| How were the first black holes formed? Posted: 16 Sep 2021 07:40 AM PDT As the question states, how were the first black holes formed so early in the universe's timespan? Did the stars just burn themselves out too fast from all the matter still floating around being pulled in and causing fusion at a faster rate due to all the mass? Did they just get too massive that they couldn't help but collapse? Or did they just have enough time to burn out normally? [link] [comments]  |
| What percentage of COVID deaths are in the “No Underlying Conditions” category? Posted: 16 Sep 2021 08:10 PM PDT |
| What happens to COVID variants that doesn't become or stops being the dominant strain? Posted: 16 Sep 2021 11:05 PM PDT I know that viruses compete with each other. So what happens to strains of virus that doesn't win the fight? Are they still present but in smaller amounts? In the same amount? Do some of them just die out? What about the ones that were dominant and another variant, younger and more beautiful, took over? What's the status of the wildtype and the alpha variant of SARS-CoV-2 now? [link] [comments]  |
| Is there any kind of link between schizophrenia/psychosis and believing you have psychic abilities? Posted: 16 Sep 2021 09:30 AM PDT Previously I saw a post asking about any proven correlation between schizophrenia and creativity. This got me thinking about how I, as someone with schizoaffective disorder, briefly thought I might have been seeing things that hadn't happened yet. So I was wondering if there had ever been any kind if study ro see if people who claim to be psychics of any kind were really just suffering from delusions/hallucinations/paranoia. [link] [comments]  |
| Is the Sun moving relative to everything else? Posted: 16 Sep 2021 10:05 AM PDT Not counting the expansion of the universe and the solar system's revolution around the center of the galaxy, does the Sun move at all? For example, does it wobble or deviate from its position relative to the planets or to other stars? [link] [comments]  |
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