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#shorts #ebike #ebikes #DYU #bugoutvehicle #buggingout electric bicycle‚ bug out vehicle‚ electric bike Today I unbox the DYU C3 E-Bike and give you my first impressions. Stay subscribed with bell notification on for a full review later this month. E-Bikes may make a great option for bugging out in a stealthy way when the roads are gridlocked. My links are affiliate links‚ I may earn a small commission when you use them. DYU E-Bikes: https://pboost.me/6MPy?uid=Sarge Discount Code: “Prepping” ($50 off) Rhino Rescue First Aid Kits: https://rhinorescuestore.com/PREPPING_WITH_SARGE 10% off DISCOUNT CODE: PREPPING_WITH_SARGE MIRA SAFETY Discount Code: SARGE10 for 10% off. (gas masks‚ PPE‚ Potassium Iodide): https://alnk.to/5jjDhcO Need an emergency supply of antibiotics? Use my affiliate link! (They now also can prescribe a year long supply of meds for chronic conditions like asthma‚ diabetes‚ high cholesterol and many more chronic health issues!!) https://www.jasemedical.com/preppingwithsarge Discount code “SARGE10” for $10 off the Jase Case Want to buy silver from the most reliable online dealer? Here is my Apmex affiliate link: https://glnk.io/8712/prepping-with-sarge #apmex #preciousmetals #gold #silver #bullion @APMEX Black Beard Fire Starters: https://blackbeardfire.com/Sarge DISCOUNT CODE: SARGE (10% off) Wazoo Survival Gear (Foraging Bandana‚ Viking Whetstone‚ Fire Starter Necklace etc) https://www.wazoosurvivalgear.com?aff=sarge USE COUPON CODE: "SARGE2022" FOR 5% OFF YOUR ORDER! Grayl Water Filter Purification System for Backpacking‚ Hiking‚ Travel‚ and Bug Out Bags: https://www.avantlink.com/click.php?tt=ml&;ti=861801&;pw=314413 Order MRE's from MRE MOUNTAIN: https://prz.io/KbBlxEmsY Use that link to get $10 off your first purchase if you spend over $30 Holtzman Gorilla Survival Knives: https://holtzmansurvival.com/?ref=Sarge Discount code “SARGE” for 10% off Powertac Tactical Flashlights: Discount Coupon Code 15% off: "SARGE" Powertac Site: https://www.powertac.com/ Need Garden Seeds? Sarge recommends Superseeds! use coupon code "SARGE10" for 10% off orders of $20 or more https://www.superseeds.com As an Amazon Associate‚ I earn from qualifying purchases. Portable Jackery Solar Power Station: https://amzn.to/49eWVnt Get Out Gear Trekking Poles: https://amzn.to/3s8RsxU Want to buy a coffee for me? you can use the SUPER THANKS (see the button below) and you can get your comment pinned (shoutout your channel or business this way!) Want me to review one of your products for my viewers? Businesswithsarge@gmail.com Prepping With Sarge PO BOX 31216 Charleston‚ SC 29417 *** DISCLAIMER: Opinions are my own. Any images used were found on copyright free public domain site‚ or used under the Fair Use Act allowed for commentary‚ but if you believe they belong to you and would like credit or removal‚ please email me with proof of ownership. By watching my videos you agree to the following: This channel‚ the associated LLC‚ affiliates‚ the providers have provided the material contained in this content for entertainment purposes only. The provider assumes no liability for for errors in content. In no event shall the provider be held liable for any special‚ direct‚ indirect‚ consequential or incidental damages or any damages whatsoever- whether in a personal action‚ or or in an action of contract‚ negligence or other tort- arising out of or in connection with the use of the content. The provider reserves the right to make additions‚ deletions‚ or modifications to the content at any time without prior notice. The provider does not provide medical‚ legal‚ financial or any other type of advice. Viewers &; listeners‚ whenever necessary‚ &; where permissible by law should enlist the services of experts versed in the specific matters they are concerned with. My entire channel is for entertainment purposes only. They are NOT financial advice. The viewer agrees that the content creator is not liable nor will ever be held liable for the decision the viewer makes regarding their own finances‚ &; the viewer agrees to forfeit all legal recourse against the content creator. My tags: #Survival #survivalskills #survivalist #SHTF #prepper #preppers #SHTF #Survivalskills #preppingforshtf #PreppingforSHTF #SHTF #SHTFpreparation Prepping for SHTF‚ Doomsday Preppers‚ Survival‚ Survivalism‚ Survivalist‚ Bushcraft‚ EDC‚ Homestead‚ homesteaders‚ homesteader‚ prepper‚ preparedness‚ Prepping for Everything‚ Prepper Survival‚ Preppers Community‚ Prepper Channels

Our galaxy is filled with magnetic fields. They come not just from stars and planets‚ but from dusty stellar nurseries and the diffuse hydrogen gas of interstellar space. We’ve long known of this galactic magnetic field‚ but mapping it in detail has posed a challenge. Now a new study gives us a detailed 3-dimensional map of these fields‚ with a few surprises. Magnetic fields don’t emit light on their own‚ so we can’t simply scan the sky with optical telescopes to see where they are. Instead‚ we must look for ways in which magnetic fields cause charged particles to emit light‚ or how distant light is affected by interstellar gas within the magnetic field. For objects such as stars and planets‚ we mostly map their magnetic fields by charged particles. Ions can become trapped by magnetic field lines‚ spiraling along them as they emit light. It’s how we first mapped the magnetic field of Jupiter‚ and how we can study the magnetic fields of the accretion disks of black holes. But galactic magnetic fields are much weaker and diffuse. While charged particles can spiral along galactic magnetic fields‚ the light they emit is often too faint for us to detect. So instead we use a trick of polarized light. Polarized light is light where its waves oscillate in a particular direction‚ rather than randomly in various directions. It’s often used in things like polarized sunglasses‚ which filter out light scattered off shiny objects‚ and water‚ which helps to eliminate glare. There are lots of things in space that emit polarized light‚ such as pulsars and matter within accretion disks. Radio telescopes in particular can detect the polarization of this light‚ which gives astronomers more information than they’d otherwise have. One of the properties of polarized light is that different frequencies move through ionized gas at slightly different speeds. This gives a beam of polarized light and effective rotation depending on how much ionized gas it travels through. Since ionized gas is caught by magnetic fields‚ we can map the magnetic fields by looking at the polarization of various light sources. White lines show the complex structure of magnetic fields in our galaxy. Credit: Doi‚ et al This has been done before‚ and it has given us a rough map of magnetic fields in our galaxy. What these studies found was that the magnetic fields of the Milky Way tend to fall uniformly along the disk shape of the galaxy. This new study took this one step further. Using data from the Gaia spacecraft‚ the team had a detailed map of the distribution of stars and nebulae in the local region of our galaxy. They then combined this with polarization observations of the Sagittarius spiral arm. Together this gave them a detailed 3-dimensional magnetic field map of the region. They found that the magnetic fields aren’t uniform‚ and don’t simply lie along the galactic plane. Even within the diffuse regions of interstellar space galactic magnetic fields can take complex forms. Many of their field lines diverge significantly from the galactic plane. They also found that these galactic magnetic fields can strongly interact with stellar nurseries‚ penetrating them and affecting the motion of gas and dust. This could explain how some stellar nurseries have regions of star formation that could not have formed from gravity alone. As we capture a more detailed view of magnetic fields‚ we will better understand how they interact with the galaxy as a whole. They not only affect the formation of new stars but could impact the structure of galaxies and how they evolve over time. Reference: Doi‚ Yasuo‚ et al. “Tomographic Imaging of the Sagittarius Spiral Arm’s Magnetic Field Structure.” The Astrophysical Journal 961.1 (2024): 13. The post Astronomers Have Mapped the Milky Way's Magnetic Fields in 3D appeared first on Universe Today.

In Dante Alighieri’s epic poem The Divine Comedy‚ the famous words “Abandon all hope‚ ye who enter here” adorn the gates of hell. Interestingly enough‚ Dante’s vision of hell is an apt description of what conditions are like on Venus. With an average temperature of 450 °C (842 °F)‚ atmospheric pressures 92 times that of Earth‚ and clouds of sulfuric acid rain to boot‚ Venus is the most hostile environment in the Solar System. It is little wonder why space agencies‚ going all the way back to the beginning of the Space Age‚ have had such a hard time exploring Venus’ atmosphere. Despite that‚ there are many proposals for missions that could survive Venus’ hellish environment long enough to accomplish a sample return mission. One such proposal‚ the Sample Return from the Surface of Venus‚ comes from aerospace engineer and author Geoffrey Landis and his colleagues at the NASA Glenn Research Center. Their proposed concept was selected for this year’s NASA Innovative Advanced Concepts (NIAC) program. It consists of a solar-powered aircraft that would fashion propellant directly from Venus’ atmosphere and deploy a sample-return rover to the surface. The concept of a solar-powered airplane exploring Venus is one Landis and his colleagues have been developing for roughly twenty years. In his first paper‚ released in 2001‚ “Exploring Venus by Solar Airplane‚” Landis indicated how a solar-powered airplane could safely explore above the cloud deck on Venus – roughly 60 km (37 mi) above the surface. At this altitude‚ he claimed‚ the solar intensity is “comparable to or greater than terrestrial solar intensities‚” and the atmospheric pressure makes flight easier than on Mars. He also noted how Venus’s slow rotation would ensure that the airplane would be exposed to continuous sunlight and wouldn’t require stored energy for night-time flight. In a paper released in 2003‚ “Atmospheric Flight on Venus: A Conceptual Design‚” Landis and colleagues from NASA Glenn and the University of Illinois shared specifications for a potential fleet of solar-powered aircraft. Two years later‚ This was followed by “Venus atmospheric exploration by solar aircraft” in 2005‚ where Landis and these same colleagues advocated for a mission to explore Venus’ atmosphere 50 to 75 km (31 to 47 mi) from the surface. This region is part of Venus’ “middle atmosphere‚” where temperatures range from -100 °C (-148 °F) to about 30-70 °C (86-158 °F)‚ and exposure to sulfuric acid rain would be minimal. What’s more‚ thanks to Venus’ slow rotational period (243 days)‚ a solar-powered aircraft flying above the cloud deck would also be exposed to perennial daylight. As Landis told Universe Today via email: “The middle atmosphere of Venus is nearly the most unknown region of the planet‚ and simply flying an airplane in this region could lead to some interesting science. Aircraft have the advantage that they have complete control over flight; you go where you want to go‚ not where the wind sends you. For the sample return‚ the airplane gives us the option to do a controlled rendezvous with the return rocket.” In a subsequent paper released in 2004‚ “Robotic Exploration of the Surface and Atmosphere of Venus‚” Landis presented a mission architecture that included both surface robots and a solar-powered airplane. Whereas the robots would explore the surface for 50 days (their full lifetime)‚ the aircraft would probe Venus’ atmosphere between 100 km (62 miles) and 60 km (37 mi) above the surface – i.e.‚ just above the cloud deck. From this point onward‚ Landis and his colleagues at NASA’s Glenn began to consider how advances in materials science would enable a mission to the surface. Slide from a 2008 presentation to NASA’s STDT for Venus. Credit: Geoffrey A. Landis/NASA In 2008‚ Landis and his team presented their concept to NASA’s Science and Technology Definition Team (STDT) for Venus. As they revealed‚ the concept would have a wingspan of 9 meters (29.5 feet) and measure 7 m (23 ft) long‚ with a foldable design that would allow it to fit inside an aeroshell. The aircraft would unfold once it reached Venus and would have many advantages over other airborne concepts – such as balloons and solar-powered airships. Several studies by Landis and his team followed‚ and the design has evolved with time. Suffice it to say the concept has evolved considerably over the past twenty years and owes its existence to many different sources. In its latest version‚ which was selected for Phase I NIAC development‚ the aircraft relies on carbon monoxide rocket technology and generates its own propellant directly from Venus’ atmosphere. As Landis told Universe Today‚ this concept is still in line with the original idea and could enable the first sample-return mission from Venus: “[T]he first paper I did‚ looking at Venus airplanes‚ was back in 2001‚ when we were still hoping it would be exciting to celebrate the centenary of the Wright Flyer with the first flight on another planet. The solar airplanes we looked at in the past‚ though‚ were for flight in the upper atmosphere‚ not in the hot near-surface atmosphere. But high-temperature electronics are being developed at NASA Glenn and elsewhere‚ and it was reasonable to start thinking whether it’s possible to actually fly all the way to the surface and back up.” “Separately‚ we were looking at in-situ propellant production for other missions‚ and I started thinking‚ where else could we think to apply in-situ propellant production that hasn’t already been analyzed‚ and particularly‚ where could it make a real difference in an otherwise nearly impossible mission?” said Landis. “The Venus sample return stemmed from that kind of thinking.” The aircraft would be paired with a surface element that takes advantage of high-temperature surface systems. As explored in previous articles‚ scientists have spent years working on concepts that could operate in Venus’ hellish environment. This has led to a diverse range of proposals that incorporate “steampunk” technology‚ a wind sail‚ or special electronic systems that can withstand the extreme heat and pressure of Venus’ atmosphere. In addition‚ the aircraft could also obtain atmospheric samples‚ perhaps settling the debate on whether there could be life in Venus’ clouds. “For the surface sample‚ this would be primarily a geology and mineralogy mission‚” said Landis. “An atmospheric sample would also have tremendous scientific value for astrobiology and would be a good stepping stone to the more difficult surface sample mission. The recent discovery of phosphine in the clouds of Venus makes the idea of a cloud sampler even more exciting.” With Phase I funding secured‚ Landis and his colleagues are now focused on turning the conceptual mission architecture into detailed designs. As Landis explained‚ this will consist of a step-by-step concept of operations (CONOPS)‚ where all the mission components will be combined to create a mass budget‚ produce some hard numbers‚ and show that it is feasible. Looking to the future‚ Landis and his colleagues hope that their proposal will lead to applications for aerial vehicles and exploration that go far beyond Venus and Mars: “I do think that the next big step in planetary exploration‚ pioneered by the Mars ‘Insight’ helicopter‚ is flight. In-situ resource utilization‚ although talked about extensively‚ has yet to be attempted on any solar system body (other than Earth). Putting these together should open doors to the exploration of many planetary bodies.” To learn more‚ check out the full list of NASA’s NIAC 2024 selections here. Further Reading: NASA The post NASA Selects a Sample Return Mission to Venus appeared first on Universe Today.

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China’s population fell by 2.08 million last year to 1.4097 billion people‚ down by 2.08 million from 1.4118 billion in 2022. The official population data includes its 31 provinces‚ autonomous regions and municipalities‚ as well as servicemen‚ but excludes foreigners. In terms of gender‚ China’s male population stood at 720.32 million in 2023‚ while the female population was 689.35 million. “The population contraction observed in 2023 aligns with our earlier projections...