RS-25 engines powering the NASA_SLS (Space Launch System) rocket... use liquid oxygen and liquid hydrogen as propellants – the same elements that combine to create water (H2O). For an RS-25 engine test, liquid hydrogen and liquid oxygen are mixed in the engine combustion chamber and ignited, which results in extremely high-temperature exhaust (up to 6,000 degrees F) exiting the nozzle into the flame deflector at a very high rate and pressure. Hundreds of thousands of gallons of water also are flowing into the flame deflector to cool the exhaust and protect the deflector. When the hot exhaust mixes with the water, it creates steam that rises into the atmosphere, forming a cloud that subsequently cools. Depending on the temperature and humidity at the time of the test, this cloud of steam may condense into water and fall in a very limited and localized area. The steam released during a test is water and does not pollute the atmosphere.show more

The fueling process for the Artemis II rocket has... picked up speed. The rocket is now more quickly filling with liquid oxygen and liquid hydrogen. When the core stage is completely full, it will contain 196,000 gallons of liquid oxygen and 537,000 gallons of liquid hydrogen.show more

GE9X Water Ingestion Test - Proving the World's Largest... Jet Engine Can Survive Extreme Rain The General Electric GE9X, built for the Boeing 777X, must pass brutal certification tests before entering service. One of the toughest is the water ingestion test. What Is the Water Ingestion Test? This test checks if the engine can continue operating safely during extremely heavy rain. During the test: Large amounts of water are sprayed directly into the engine intake The engine runs at high power Engineers monitor performance and stability How the Test Is Performed In a specialized test facility: Water nozzles simulate intense rainfall Thousands of liters of water are injected into the airflow The engine operates at different thrust levels Sensors monitor: Combustion stability Compressor performance Temperature and pressure changes ▲ What Engineers Are Checking The engine must prove that: No flameout occurs No compressor stall happens Thrust remains stable Internal components are not damaged Even with massive water flow, the engine must keep running smoothly.show more

SpaceX has conducted the first ever water deluge test... of the flame deflector under the Pad-B OLM!!!show more

This video shows a static fire test of the... Archimedes rocket engine, developed by Rocket Lab. Archimedes uses liquid methane (LCH.) as fuel and liquid oxygen (LOX) as the oxidizer, a combination known as methalox. During combustion, these cryogenic propellants produce extremely high temperatures (over 3,000°C), hotter than lava. To survive this, the engine circulates cold fuel through its walls before burning it, a technique called regenerative cooling. Multiple Archimedes engines will power Rocket Lab's upcoming Neutron rocket, which is being built to launch satellites and cargo to orbit with lower cost and higher reliability. Rocket Lab is best known for its Electron rocket and is now expanding into larger, reusable launch vehicles with Neutron.show more

This is Teheran this morning - Yes, this morning.... Thick black clouds are covering the city - oil and ashes are raining down on the streets. War is hell. A PH test of the water in Teheran also shows that the water has become acidic- resulting from the oil and ashes leaking into the fresh water supply of the city. The corrosion of the cities water and sewage pipes will become a problem for the city; a problem for the generations to come.show more

Satya Nadella: Microsoft’s latest Wisconsin AI data center keeps... yearly water consumption no higher than that of 1 local restaurant. "The cooling loop is filled once and the data centre can operate effectively with zero water consumption. Daily water usage across a year is roughly equivalent to what a single restaurant would use" The mechanism is mainly about replacing evaporative cooling with closed-loop direct-to-chip liquid cooling, so water moves like coolant inside a sealed machine rather than being boiled off into the air. Hot GB200-class AI racks produce too much heat for normal air cooling, so cold liquid is pushed through pipes into the servers and across metal cold plates touching the hottest chips. The liquid enters the rack cool, absorbs heat from the chips through cold plates, then exits the rack at a higher temperature and carries that heat through pipes to a huge cooling system outside the compute floor. Microsoft says Fairwater sends that hot water to cooling “fins” beside the datacenter, where 172 20-foot fans blow air across the fins and dump the heat into the outside air. The important detail is that the air cools the water through metal surfaces, so the water does not need to evaporate the way many older datacenters use cooling towers. The cooled liquid then returns to the servers, repeats the loop, and keeps absorbing heat from the chips. In older data centers, heat is often removed partly through cooling towers. Hot water meets moving air, some water evaporates, and that phase change carries heat away. Effective, but it consumes fresh water continuously. But Firwater is a closed loop because the same coolant keeps circulating through sealed pipes: it absorbs heat from the chips, releases that heat through radiator-like fins, then flows back to the chips again. For Wisconsin Fairwater, Microsoft says more than 90% of the facility uses closed-loop liquid cooling, while the remaining portion uses outside air and switches to water only on the hottest days. ---- From "Microsoft" YouTube channel, (link in comment)show more

CAUGHT ON CAM 💥: An explosion of steam and... dirty water shot into the air at Yellowstone National Park's Biscuit Basin yesterday after a new pool of boiling water formed last week. Cameras caught the moment the plume of steam shot into the sky several feet high.show more

This is the recent hotfire test of Astra's most... powerful Rocket 4 first stage engine. The quick green flash comes from a special compound called triethylborane (TEB). It's pyrophoric - meaning it spontaneously ignites the moment it touches air. That super-hot green flame then lights the main propellants: kerosene and liquid oxygen. Once ignited, the engine unleashes a roaring orange plume and huge clouds of smoke. These ground tests prove the engine is ready for flight - checking thrust, stability, and performance before it ever leaves the pad. Credits: astraspaceshow more

Core stage = loaded ✅ The core stage of... the NASA Artemis II SLS rocket is full with 196,000 gallons (741,941 liters) of liquid oxygen and 537,000 gallons (2M liters) of liquid hydrogen. 📹: NASAshow more

Astonishing video captures hydrogen and oxygen forming water at... the nanoscale.show more

Caught on film for the first time: Hydrogen and... Oxygen forming water…show more

A reported 200-foot portion of the Santa Cruz Pier... in California has collapsed and is now floating in the ocean due to high surf. Water rescues are underway due to people that fell into the water.show more

🧵 Like clouds, #contrails form when water (H2O) condenses... on tiny particles in the air. 💦☁️ Gas turbine (jet) engine exhaust 💨contains particles (carbon/soot)🚬 from the combustion of fuel & oxygen. This exhaust plume is about 400C 🔥 rushing out into -50C❄️ ambient air…..show more

Bernoulli's Principle states that "fast moving fluid creates low... pressure". The guy created low pressure outside with the water and air moves from high pressure to low pressure so it quickly sucked out the air from the room which creates deficiency of oxygen in the room and fire went out.show more

Demonstration of the Leidenfrost effect. The moisture of the... hand dipped in water on his skin boils instantly, forming a layer of steam that insulates for a very short time his body from the heat; a temporary barrier between this person and the molten metal.show more

Guy drives by a Casey’s gas station, films this... woman pouring a bucket of clear liquid into the ground access point, and immediately declares “Gas stations are diluting the gas with water” In reality she’s a technician doing routine pump meter calibration. They run a measured amount of fuel through the dispensers into a test container to check accuracy, then pour the tested gasoline back into the underground tankshow more

In the first video, people in Donetsk are seen... greeting a water tanker. In the second video, during the rain, people try to collect at least a drop of water because the water pipeline from the Siverskyi Donets was destroyed by the Russians. When Donetsk was not occupied by Russia, the city hosted the European Football Championship, as well as concerts by Rihanna and Beyoncé. Now, there is no more running water in the city. According to the schedule, water only appears in taps once every three days, and even then it doesn’t reach every household, so water has to be delivered by tankers, with long queues forming for it. People use plastic bags as toilets, and this filth spreads everywhere. This is happening not only in Donetsk - water is supplied once every two days in a number of other cities, including Mariupol. This is how Russia 'liberated' Donbas. Why is this happening? In the past three and a half years - since Russia launched its full-scale invasion of Ukraine in February 2022 - reservoirs in Donetsk Oblast have significantly dried up. The water supply system from the Siverskyi Donets River was destroyed. The region’s reservoirs and underground water sources are not enough to meet the needs of the population, in part due to the extensive network of coal mines. When the self-proclaimed “DPR” and “LPR” were created in 2014, Ukraine did not cut off this water channel, as it was still supplying water to Mariupol, which remained under Ukrainian control. But at the start of the Russian invasion in February 2022, the situation changed: the Russian army, during its offensive, destroyed a unique hydraulic structure that had supplied the region’s largest cities with water. The Russian authorities decided to build a new canal - the Don–Donbas canal - which was supposed to begin in the Rostov-on-Don area. It soon became clear that the new water pipeline, first of all, could not provide the region with the necessary amount of water, and second, it was built with numerous violations, with a large portion of the budget embezzled during construction. Crimea is also suffering from a water shortage, and the situation is worsening. One of the reasons why Russia is striving to seize southern Ukraine is that it sees this as a way to "solve the water issue" for the occupied territories.show more

The planet is giving warning signs about global warming,... something that scientists have been underlining for decades. Thousands of fish died at Quintana Beach, Texas, due to the lack of oxygen caused by high water temperatures. Warmer waters hold less oxygen, which can lead to hypoxia and the death of fish. These events, which seem to be more frequent and severe, coincide with the predictions of a 2019 UN report that warned about the possible formation of "dead zones" in the sea due to the rise in surface water temperatures. #ClimateActionNowshow more

Depending on the volume and size of your suppressor,... you can add water or some other liquid (piss, spit, vaseline) in order to quiet the report on a suppressor. Generally water is my go to but the water will burn off quickly depending on caliber. It’s a good little trick to knowshow more