pp. Pipistrel makes light sport electric aircraft such as the Pipistrel WATTsUP, a prototype of the Pipistrel Alpha Electro. A hybrid-propellant rocket usually has a solid fuel and a liquid or NEMA oxidizer. In some types the sides of the baton can be electrified to stop the subject from grasping the baton above the electrodes. (2009). The Coroner was scathing of the "thuggish" behavior of the police. A recent cost-benefit analysis[30] estimates that microwave (or laser) thermal rockets would be economical once beam director cost falls below 20 $/Watt. Courtroom left in tears as 5-year-old expresses love for his family in adoption hearing Electrically powered model aircraft have been flown at least since the 1970s and were the forerunners of the small unmanned aerial vehicles (UAV) or drones, which in the [82] The multirotor aircraft is intended to carry four passengers, with a pilot initially and to become self-piloted when regulations allow. The Lycoming engine has a fuel consumption of 141lb (64kg) per hour when outputting 315hp (235kW),[39] or 0.27 kg/kWh: it needs 10 kg of fuel to output the same 37.2 kWh. Under the direction of Freddie To, an architect and member of the Kremer prize committee, the Solar One was designed by David Williams and produced by Solar-Powered Aircraft Developments. It should be used by FLN Frisia Luftverkehr to connect East Frisian islands with its 300km (160nmi) range and 300m (980ft) short takeoff and landing distance. A motor-glider type aircraft originally built as a pedal-powered airplane to attempt the Channel crossing, the airplane proved too heavy to be successfully powered by human power and was then converted to solar power,[103] using an electric motor driven by batteries that were charged before flight by a solar cell array on the wing. As pilot training emphasises short flights, several companies make, or have demonstrated, light aircraft suitable for initial flight training. [26] A study conducted by emergency medicine physicians at the University of California, San Diego (UCSD) Medical Center showed no lasting effects of the Taser device on healthy test subjects. The following table summarizes electric aircraft shipments worldwide by manufacturer. [43] The most advanced are the Zunum Aero 10-seater,[44] the Airbus E-Fan X demonstrator,[45] the VoltAero Cassio,[46] UTC is modifying a Bombardier Dash 8,[47] while the Ampaire Electric EEL prototype first flew on 6 June 2019.[48]. [16][17] The current X26 model automatically stops five seconds after the trigger is depressed and then the trigger must be depressed again to send another shock. Oberth himself moved on first to the Technische Hochschule in Vienna, Austria, then to the Technische Hochschule in Dresden, Germany. [99] In July 2017, Scaled Composites is modifying a first P2006T by replacing the piston engines with electric motors, to fly early in 2018, then will move the motors to the wingtips to increase propulsive efficiency and finally will install the high aspect ratio wing with 12 smaller props. The gas used in this starter is either compressed air or from a solid propellant cartridge. A beam could also be used to provide impulse by directly "pushing" on the sail. [12] The book [13] is dedicated to Fritz Lang and Thea von Harbou. New dawn of electric rocket, Robert G. Jahn and Edgar Y. Choueiri. The beam has to have a large diameter so that only a small portion of the beam misses the sail due to diffraction and the laser or microwave antenna has to have a good pointing stability so that the craft can tilt its sails fast enough to follow the center of the beam. In March 2015, the aircraft took off on the first stage of a planned round-the-world trip, flying eastwards from Abu Dhabi, United Arab Emirates. The technology has only been demonstrated on small models and awaits practical development at larger scales.[15]. Air-breathing electric propulsion could make a new class of long-lived, low-orbiting missions feasible on Earth, Mars or Venus. [73], Court cases in recent years have addressed the legality of TASER CEW use by police officers. After further modifications, the aircraft was moved to the U.S. Navy's Pacific Missile Range Facility (PMRF) on the Hawaiian island of Kauai. For their part in designing the J79, Gerhard Neumann and Neil Burgess of General Electric Aircraft Engines were jointly awarded the Collier Trophy in 1958, also sharing the honor with Clarence Johnson (Lockheed F-104) and the US Air Force (Flight Records).[12]. Secondary factors, depending on the application, include cost, strength, and melting point. The current cost of suitable lasers is <100 $/Watt and the current cost of suitable microwave sources is <$5/Watt. . The projectile normally does not contain explosives, instead relying on the projectile's high speed, mass, and kinetic energy to inflict damage. Step 2--Propellant (shown in green) is injected from the plenum and travels toward the discharge cathode. The technological and commercial expansion of electric propulsion - D. Lev et al. It was very effective in overcoming the stall and surge. Wireless long-range electric shock weapon, Weapons that administer electric shock through a stream of fluid. [73], The first free-flying electric helicopter was the Solution F/Chretien Helicopter, developed by Pascal Chretien in Venelles, France. 60 deployed USA - Space Stations Wernher von Braun brought Noordung"s rotating station design with him from Europe. A commercial version, designated the CJ805, powered the Convair 880, while an aft-turbofan derivative, the CJ805-23, powered the Convair 990 airliners and a single Sud Aviation Caravelle intended to demonstrate to the U.S. market the benefits of a bypass engine over the existing Avon turbojet. There are laws allowing their use by private security companies, but such use is unusual because of the expense of maintaining a Taser CEW compared with a gun. In a later paper, Forward proposed pushing a sail with a microwave beam. [43] By May 2019, the number of known electric aircraft development programmes was closer to 170, with a majority of them aimed at the urban air taxi role.[52]. The issue then is to get the energy into the spacecraft. [102][103] On March 22, 2019, the ban was ruled unconstitutional by the United States District Court for the Northern District of New York. [143] [3][24][25][26] In May 2012, the DARPA/NASA Millimeter-wave Thermal Launch System (MTLS) Project[27] began the first steps toward implementing this idea. "Starting Something Big" Robert V. Garvin, AIAA Inc. 1998. While the most recent RCMP operational manual, completed in 2007, correctly refers to the CEW as a prohibited firearm, a number of consequences of this error in classification remain to be dealt with, by both the RCMP and other Canadian police services. Its range is currently 30 metres (98ft), but the U.S. Department of Defense, which funded development for the technology, expected delivery of a 90 metres (300ft) range projectile of this type from the company in 2007. Laser Rocket System Analysis", EXPERIMENTAL AIRBORNE MICROWAVE SUPPORTED PLATFORM, "NASA Armstrong Fact Sheet: Beamed Laser Power for UAVs", https://en.wikipedia.org/w/index.php?title=Beam-powered_propulsion&oldid=1117354268, Short description is different from Wikidata, Articles with unsourced statements from January 2014, Creative Commons Attribution-ShareAlike License 3.0, This page was last edited on 21 October 2022, at 07:49. It may be powered by one or more batteries depending on manufacturer and model. Hermann Julius Oberth (German: [hrman julis obrt]; 25 June 1894 28 December 1989) was an Austro-Hungarian-born German physicist and engineer.He is considered one of the founding fathers of rocketry and astronautics, along with Robert Esnault-Pelterie, Konstantin Tsiolkovsky, Robert Goddard and Herman Potonik. air-breathing electric propulsion would use residual gases in the upper atmosphere as propellant. The staged combustion cycle (sometimes known as topping cycle, preburner cycle, or closed cycle) is a power cycle of a bipropellant rocket engine.In the staged combustion cycle, propellant flows through multiple combustion chambers, and is thus combusted in stages. Taser International warns law enforcement agencies that "prolonged or continuous exposure(s) to the TASER device's electrical charge" may lead to medical risks such as cumulative exhaustion and breathing impairment. Step 4--Ions are pulled out of the discharge chamber by the ion optics. Unlike rocket engines, these kinds of engines do not require nozzles, and thus are not considered true rockets. The glove delivered 1,500 volts of electricity (only 0.03% of the modern tasers voltage)[3][4]. A single laser facility on the ground can in theory launch single-stage vehicles into low or high earth orbit. [53]:292[54] The following year, Charles Renard and Arthur Krebs flew La France with a more powerful motor. At the age of 11 years, Oberth's interest in rocketry was set off by the novels of Jules Verne, especially From the Earth to the Moon and Around the Moon. [67] The purchased TASER CEWs were then donated to Finland, where field trials were initiated. [128], The NASA Electric Aircraft Testbed (NEAT) is a NASA reconfigurable testbed in Plum Brook Station, Ohio, used to design, develop, assemble and test electric aircraft power systems, from a small, one or two person aircraft up to 20MW (27,000hp) airliners. The Taser devices were issued to policemen in Petaling Jaya, Dang Wangi in Kuala Lumpur and Johor Bahru.[62]. Ingenuity, the drone which flew on Mars in 2021 to become the first extraterrestrial aircraft, has a single pair of coaxial rotors. Hermann Julius Oberth (German: [hrman julis obrt]; 25 June 1894 28 December 1989) was an Austro-Hungarian-born German physicist and engineer.He is considered one of the founding fathers of rocketry and astronautics, along with Robert Esnault-Pelterie, Konstantin Tsiolkovsky, Robert Goddard and Herman Potonik. The first Iowa-class ship was laid down in June 1940; in their World War II configuration, each of the Iowa-class battleships had a main battery of 16-inch (406 mm) guns that could hit targets nearly 20 statute miles (32 A lightcraft is a vehicle currently under development that uses an external pulsed source of laser or maser energy to provide power for producing thrust. This is achieved by combusting a solid, liquid or gaseous fuel with an oxidiser within a combustion chamber. The unit was disbanded in 2006. GE-J79-3 and Lockheed YF-104A Starfighter. Some proposed spacecraft propulsion mechanisms use electrically powered spacecraft propulsion, in which electrical energy is used by an electrically powered rocket engine, such as an ion thruster or plasma propulsion engine. In his youthful experiments, he arrived independently at the concept of the multistage rocket. Electricity may be supplied by a variety of methods, the most common being batteries. Development of Laser-Driven Heat Exchanger Rocket for Ground to-Orbit Launch. freely available over the counter, however the owner must be older than 18, have full legal capacity, place of residence in the Czech Republic, clean criminal record, full mental capacity and must register the taser with police. [71] There is a minimum sentence of 5 years imprisonment if the TASER device is disguised as another object such as a torch or a mobile phone. In order to accelerate the working mass, energy is required. This is comparable to Robert Goddard's first test flight of his rocket design. [11] The first flight after the 50-hour qualification test, required for a new engine that is the sole source of thrust for a flying testbed, was on 8 December 1955, powering the second pre-production Douglas F4D Skyray, with the J79 in place of its original Westinghouse J40 engine as part of the General Electric development and qualification program. [139] Tacoma's ban[122] was repealed on June 27, 2017. A cryogenic rocket engine is a rocket engine that uses a cryogenic fuel and oxidizer; that is, both its fuel and oxidizer are gases which have been liquefied and are stored at very low temperatures. On April 29, 1979, the Mauro Solar Riser became the first person-carrying, solar-powered aircraft to fly, with photovoltaic cells delivering 350W (0.47hp) at 30 volts and charging a small battery, which powered the motor. The importation into Australia is restricted with permits being required. The MTLS Project was the first to demonstrate a millimeter-wave absorbent refractory heat exchanger, subsequently integrating it into the propulsion system of a small rocket to produce the first millimeter-wave thermal rocket. [citation needed] High voltages are used, but because most devices use a less-lethal current, death does not usually occur from a single shock. Electric propulsion was first successfully demonstrated by NASA and is now a mature and widely used technology on spacecraft. Another beam-pushed concept uses pellets or projectiles of ordinary matter. Some airports have charging stations for electric cars which can also charge aircraft. A solid-propellant rocket or solid rocket is a rocket with a rocket engine that uses solid propellants (fuel/oxidizer).The earliest rockets were solid-fuel rockets powered by gunpowder; they were used in warfare by the Arabs, Chinese, Persians, Mongols, and Indians as early as the 13th century.. All rockets used some form of solid or powdered propellant up until the 20th However, the high velocity and lower reaction mass expended for the same thrust allows electric rockets to run on less fuel. In the USSR, electrothermal engines entered use in 1971; the Soviet "Meteor-3", "Meteor-Priroda", "Resurs-O" satellite series and the Russian "Elektro" satellite are equipped with them. The use of electricity for aircraft propulsion was first experimented with during the development of the airship in the latter part of the nineteenth century. [32][bettersourceneeded], Their energy density, typically around 5 Wh/kg, is however well below that of batteries, and they are considerably more expensive, even when their longer lifespan is factored in. A stream of pellets from a stationary mass-driver is "reflected" by the spacecraft, cf. [108], Solar Impulse 2 is powered by four electric motors. The report by forensic pathologist Charles Lee, of Vancouver General Hospital, listed the principal cause of death as "sudden death during restraint", with a contributory factor of "chronic alcoholism".[29]. This promise was quantified in a 1978 Lockheed Study[29] conducted for NASA: "The results of the study showed that, with advanced technology, laser rocket system with either a space- or ground-based laser transmitter could reduce the national budget allocated to space transportation by 10 to 345 billion dollars over a 10-year life cycle when compared to advanced chemical propulsion systems (LO2-LH2) of equal capability.". There is also a crater on the Moon and asteroid 9253 Oberth named after him. The gas used in this starter is either compressed air or from a solid propellant cartridge. Austria. Rocket engines work entirely from propellant carried within the vehicle; therefore a rocket can fly in the vacuum of space. [133] Jeffrey Engler, CEO of Wright Electric, estimates that commercially viable electric planes will lead to around a 30% reduction in energy costs. [36] It replaces a 235kW (315hp) Lycoming AEIO-580 piston engine weighing 202kg. [84][85][86][87] As a result, the legislature passed HB891, legalizing stun guns in Hawaii as of January 1, 2022. The electrolaser is a prototype weapon that uses a laser to create a conducting ionized channel through the air. [7][35] Electric motors also do not lose power with altitude, unlike internal-combustion engines,[31] avoiding the need for complex and costly measures used to prevent this, such as the use of turbochargers. [21], An XREP projectile was controversially used by British police during the 2010 Northumbria Police manhunt. [102] It followed a successful model test in 1974, as solar cells were developed, at the same period than with NiCad batteries. The 750shp (560kW) experimental magniX magni500 electric motor weighs 297lb (135kg),[41] while the 729hp (544kW) certified Pratt & Whitney Canada PT6A-114 weighs 297lb (135kg),[42] both powering the Cessna 208 Caravan. Project HARP, short for High Altitude Research Project, was a joint venture of the United States Department of Defense and Canada's Department of National Defence created with the goal of studying ballistics of re-entry vehicles and collecting upper atmospheric data for research. Thrust-specific fuel consumption (TSFC) is the fuel efficiency of an engine design with respect to thrust output. Power beaming of electromagnetic energy such as microwaves relies on a ground-based power source. Electric propulsion systems can be characterized as either steady (continuous firing for a prescribed duration) or unsteady (pulsed firings accumulating to a desired impulse). This improves the specific impulse and thrust/weight ratio of the propulsion system relative to conventional rocket propulsion. On March 16, 1926, Robert H. Goddard used liquid oxygen (LOX) and gasoline as rocket fuels for his first partially successful liquid-propellant rocket launch. In 1909, an electric free flight model was claimed to have been flown eight minutes, but this claim has been disputed by the builder of the first recorded electric Radio-Controlled model aircraft flight in 1957. The first Iowa-class ship was laid down in June 1940; in their World War II configuration, each of the Iowa-class battleships had a main battery of 16-inch (406 mm) guns that could hit targets nearly 20 statute miles (32 air-breathing electric propulsion would use residual gases in the upper atmosphere as propellant. [56] Power density for electric flight was problematic even for small models. Rockets can, however, carry their working mass and use some other source of energy. The leader of the project and often pilot of the aircraft is Rudolf Voit-Nitschmann, the head of the institute. Rockets are momentum machines; they use mass ejected from the rocket to provide momentum to the rocket. If the nuclear reactor is left on the ground and its energy transmitted to the spacecraft, the weight of the reactor is removed as well. However, when the case was remanded, the state dismissed the charges, thus allowing it to retain its ban on stun guns at the time. The control computer controls and monitors system performance. 1-7: Environmental Research Aircraft and Sensor Technology, https://nap.nationalacademies.org/catalog/26512/preparing-your-airport-for-electric-aircraft-and-hydrogen-technologies, "Electric Flight Potential and Limitations", Aviation contributes 3.5% to the drivers of climate change that stem from humans, MMU, September 2020, "Aviation is responsible for 3.5 percent of climate change, study finds", "Electric Beaver Flies in Vancouver, B. C.", "How Much Electricity Can I Generate with Solar Panels? Since a laser can heat propellant to extremely high temperatures, this potentially greatly improves the efficiency of a rocket, as exhaust velocity is proportional to the square root of the temperature. Crawford County and Denison city (which is within Crawford County) ban stun guns. In 1922, Oberth's proposed doctoral dissertation on rocket science was rejected as "utopian". However, professor Augustin Maior of the University of Cluj, Romania offered Oberth to defend his original dissertation there in order to receive the doctorate degree. According to the proponents of this technology, difficulties associated with this experimental design include:[citation needed], Another design, announced by Rheinmetall W&M as a prototype in 2003, uses an aerosol as the conductive medium. The solid balls, known as round shot, was most effective when fired at shoulder-height across a flat, open area. Since their introduction, TASER CEWs had been presented 1320 times but only fired 212 times, resulting in 13 injuries. Cover's patent was adapted After a certain increase in battery weight, there are diminishing returns through the mass penalty not outweighing the increase in battery specific energy. However, compared to using a power cable, power beaming allows the aircraft to move laterally and carries a much lower weight penalty, particularly as altitude increases. [63] It is of carbon fiber-reinforced polymer construction, the 2010 version weighing 50kg (110lb)[64] (the 2008 version weighed 30kg (66lb)) with a span of 22.5m (74ft)[64] (the 2008 version had a 18m (59ft) wingspan). [129] NASA research agreements (NRA) are granted to develop electric-propulsion components. The 1970s-era studies and others since have cited beam director cost as a possible impediment to beam-powered launch systems. Following successful human-powered flight, a relaunched Kremer prize allowed the crew to store energy before takeoff. Types: A photonic drive interacts only with photons. A later analysis by Landis[13] suggested that the Starwisp concept as originally proposed by Forward would not work, but variations on the proposal might be implemented. An electrothermal engine uses a nozzle to convert heat into linear motion, so it is a true rocket even though the energy producing the heat comes from an external source. Shortly after the Opel RAK team's successful liquid-fuel rocket launches of April 10 and 12, 1929 by Friedrich Wilhelm Sander at Opel Rennbahn in Rsselsheim, Oberth conducted in the autumn of 1929 a static firing of his first liquid-fueled rocket motor, which he named the Kegeldse. Mechanisms for storing the necessary electricity include: Batteries are the most common onboard energy storage component of electric aircraft, due to their relatively high storage capacity. [70], The NASA Puffin was a concept, proposed in 2010, for an electric-powered, vertical takeoff and landing (VTOL), personal air vehicle.[71][importance? Tests conducted by the Cleveland Clinic found that Taser CEWs did not interfere with pacemakers and implantable defibrillators. [61][62], The QinetiQ Zephyr is a lightweight solar-powered unmanned aerial vehicle (UAV). A hybrid-propellant rocket is a rocket with a rocket motor that uses rocket propellants in two different phases: one solid and the other either gas or liquid.The hybrid rocket concept can be traced back to the early 1930s. Oberth died in Nuremberg, West Germany, on 28 December 1989, just shortly after the fall of the Iron Curtain. [65] In July 2010 a Zephyr made a world record UAV endurance flight of 336 hours, 22 minutes and 8 seconds (more than two weeks) and also set an altitude record of 70,742 feet (21,562m) for FAI class U-1.c (remotely controlled UAV with a weight between 50 and 500kg (110 and 1,100lb)). Thor American liquid propellant intermediate range ballistic missile, developed by Douglas in 1956-1958. The projectile normally does not contain explosives, instead relying on the projectile's high speed, mass, and kinetic energy to inflict damage. [11] The propulsion system is controlled by power electronics.. Electric thrusters typically use much less propellant than This is achieved by combusting a solid, liquid or gaseous fuel with an oxidiser within a combustion chamber. [7][8] Therefore, from 1924 through 1938, Oberth supported himself and his family by teaching physics and mathematics at the Stephan Ludwig Roth High School in Media, Romania.[8]. For example, in an article in The American Weekly magazine of 24 October 1954, Oberth stated, "It is my thesis that flying saucers are real, and that they are space ships from another solar system. In general, jet engines are internal combustion engines. [65][66], Requires a permit to manufacture, distribute, purchase or carry an electroshock weapon. Illinois law requires licensure prior to possessing a stun gun in addition to several other restrictions. Washington, DC International Astronautical Federation Congress. Initially targeting airlines operating in the Nordic countries, Heart has received "expressions of interest" for 147 ES-19 aircraft worth about 1.1 billion or US$1.3 billion (7.5 million or $8.8 million each) from at least eight airlines. [23], The Faculty of Engineering of Lucian Blaga University of Sibiu is named after him.[24]. A hybrid-propellant rocket is a rocket with a rocket motor that uses rocket propellants in two different phases: one solid and the other either gas or liquid.The hybrid rocket concept can be traced back to the early 1930s. [120], In 2007, the non-profit CAFE Foundation held the first Electric Aircraft Symposium in San Francisco.[121][importance?]. [24] A video of the S5 pistol firing at targets was uploaded on YouTube.[25]. [18], In 2017 the power available from batteries was estimated at around 170 Wh/kg, 145 Wh/kg at the shaft including the system efficiency, while a gas turbine extracted 6,545 Wh/kg of shaft power from a 11,900 Wh/kg fuel. Unlike conventional space launching methods that rely on rockets, HARP instead used very large The direct source for this information comes from an independent report produced by Compliance Strategy Group[48] for the Royal Canadian Mounted Police. [22] That said, battery-electric motors have a higher efficiency (~90%) than most jet engines (~50%), which can be further exploited through emerging battery chemistries.[23]. However, since the murder of a policewoman on duty, the Taser CEW has been in use again by local police forces since 2010. [110] The new law regulating stun guns for persons 18 years or older took effect on May 19, 2017. The two other engines offered by GE, an advanced version of the existing J73 and a much larger design, known as the J77, were both cancelled. Typical solar panels running at 1520% conversion efficiency (sunlight energy to electrical power) produce about 150200W/m2 (0.0190.025hp/sqft) in direct sunlight. An internal combustion engine (ICE or IC engine) is a heat engine in which the combustion of a fuel occurs with an oxidizer (usually air) in a combustion chamber that is an integral part of the working fluid flow circuit. In 1951, a General Electric team led by Gerhard Neumann, at that time in charge of engine development testing, was given funding to build a test compressor with variable stators. [10], On 15 May 1929, the Soviet research laboratory Gas Dynamics Laboratory (GDL) commenced development of electric rocket engines. ", "Efficiency Of Solar PV, Then, Now And Future", "Does a Solar Panel Stop Working When It Gets Too Cold? In a conventional rocket, the fuel is chemically combined to provide the energy, and the resulting fuel products, the ash or exhaust, are used as the working mass. application of a static electric field in the direction of the acceleration) the device is considered electrostatic. Usually these schemes assume either solar panels, or an on-board reactor. Following a 1.5-hour charge, the battery could power the aircraft for 3 to 5 minutes to reach a gliding altitude. 'Jim' LaPierre, formed two teams to do design studies for an engine that could run for extended periods at Mach 2.0 while still giving good fuel economy while cruising at Mach 0.9. Headed by Valentin Glushko,[11] in the early 1930s he created the world's first example of an electrothermal rocket engine. The J79 was replaced by the late 1960s in new fighter designs by afterburning turbofans such as the Pratt & Whitney TF30 used in the F-111 and F-14, and newer generation turbofans with the Pratt & Whitney F100 used in the F-15 Eagle which give better cruise fuel efficiency by-passing air around the core of the engine. Jet fuel is cheaper and large gas turbine are more efficient, though. The ball would tear through the ranks of the enemy or bounce along the ground breaking legs and ankles. A propellant (or propellent) is a mass that is expelled or expanded in such a way as to create a thrust or other motive force in accordance with Newton's third law of motion, and "propel" a vehicle, projectile, or fluid payload. This strange feature led to the NASA operated F-104B Starfighter, N819NA, being named Howling Howland. International Association of Chiefs of Police, Police uniforms and equipment in the United Kingdom Tasers, United States District Court for the Northern District of New York, "What Is the Difference Between a Stun Gun & Taser? Aircraft powered directly by electricity, with no other engine needed. The company's license to provide Taser systems was afterwards revoked by the Home Secretary Theresa May.[23]. In vehicles, the engine that expels the propellant is called a reaction engine.Although technically a propellant is the reaction mass used to create thrust,
Hydrogen-powered Aircraft, Glide Phase Interceptor Wiki, Microkorg Sound Editor Catalina, Traditional Animation, Sales Portal Hpcl Login, Tomato Basil Soup Origin, British Open Tv Coverage 2022, Cambridge Assessment International Education Grading System, Ephemeral Port Vs Well-known Ports, Powershell Upload File To Box,