C = εr ε0 (A/d) This demo shows capacitive... coupling using water as a variable dielectric (εᵣ ≈ 80). The human body completes the circuit by touching the water, acting as the second conductor with its capacitance to ground. Hand/finger movement changes the effective area A and distance d, while ripples dynamically modulate C. This varying capacitance alters an oscillator’s frequency, which is converted into audio tones or MIDI in real time. Educational fluid-based sensors and interactive MIDI controllers for bio-signal acquisition and gesture-controlled music. Ideal for physics demos and human-interface experiments.show more

Gemini (left) vs ChatGPT vs Claude (right) Prompt: Create... an interactive HTML, CSS, and JavaScript simulation of a satellite system that transmits signals to ground receivers. The simulation should show a satellite orbiting the Earth and periodically sending signals that are received by multiple ground stations. Include realistic factors such as signal delay based on distance, occasional signal loss due to obstructions or interference, and visualization of the signal path as lines or waves. The satellites’ position should be updated using simplified orbital mechanics, and the ground receivers should display received signal strength and timestamps.show more

This isn’t a robot it’s a Dominican Papibot $tsla... Boston Dynamics just raised the bar again. The new Atlas moves with fluid, human-like coordination—then goes past human limits. Balance, recovery, and whole-body control are happening in real time, not pre-scripted demos. $nvdashow more

Elon Musk has repeatedly highlighted the hand (and forearm)... as one of the toughest engineering challenges for Tesla’s Optimus Robot. A new Patent (for presumably Optimus 3) shows Tesla is using human anatomy to recreate a tendon-driven robotic hand and forearm assembly that closely mimics a human system. Basically, Tesla is replacing human muscles with actuators and tendons with cables to replicate human dexterity. The Tesla Engineering team is on another level. Optimus Gen 3 reveal is going to be incredible.show more

A tourist at Yellowstone National Park illegally/stupidly dips her... hand into a hot spring. Yellowstone is also an active geothermal area with hot springs emerging at ~92°C (~198°F) (the boiling point of water at Yellowstone's mean altitude) and steam vents reported as high as 135°C (275°F).show more

🚨 SCIENTISTS EXPLAIN: Light doesn’t actually “slow down” in... glass time does. And that’s exactly why rainbows exist. For centuries we were taught that light slows down when it enters glass or water, causing refraction. But the deeper reality is more beautiful: light still travels at c between atoms. What changes is the time delay caused by constant absorption and re-emission by the material’s electrons. This tiny delay is different for every wavelength → which is why white light splits into a rainbow. Why this matters: • In vacuum, light always travels at c • In glass/water, the phase velocity and group velocity appear slower due to interactions with matter • Different colors (wavelengths) experience different delays → dispersion • This is what creates rainbows, prisms, and the beautiful colors we see in nature The deeper implication is mind-bending: Light doesn’t “slow down” like a car hitting traffic. It’s constantly being absorbed and re-emitted by atoms, and the accumulated time delay reshapes how the wave propagates. The universe uses time itself as a tool to bend light and paint rainbows across the sky. What do you think is this one of the most elegant explanations in physics? Follow for more frontier optics and quantum explanations.show 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 blade of a saw carries a small electrical... signal. When skin contacts the blade, the signal changes because the human body is conductive and the change to the signal activates the safety system. [📹 SawStop]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

As the setting sun melts into the sea, warm... and cool tones ripple across the water. Cruise along Yantai's Changzui Coast in Shandong, heading for the horizon, and discover a moment of calm—like stepping into a living Chinese painting.show more

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

This video reveals what appears to be sewage flowing... into water on Southend seafront. The footage was captured on Sunday. The area of darker coloured water was spotted by a man in an aircraft who labelled it “disgraceful”. Mark Hutley said: “I’ve never seen anything like it. It could be seen for miles.” It was spotted between Chalkwell beach and Westcliff beach. The apparent sewage spill is close to one of Anglian Water’s ‘storm overflow’ pipes that leads into the water from the land. Latest records indicate that it was active on Sunday 8 September and emptying into the area of the Thames Estuary for a period of time. Anglian Water have a permit from the Environment Agency to operate the storm overflow pipe, which specifies conditions for controlled sewage and stormwater spills during heavy rainfall. This is in order to prevent flooding in homes and businesses when the sewer network becomes overloaded with rainwater.show more

Sewage discharge is being run directly into the Des... Moines River in Iowa Iowa has well documented and recurring problems with wastewater discharges into the Des Moines River and its tributaries This river is a drinking water source for many parts of Iowa and the state regularly lists the river as “impaired” for bacteria, nitrates and other pollutantsshow more

Effective at 8 a.m. today, Wednesday, June 5, 2024,... Jefferson County Sheriff Reggie Marinelli, in conjunction with the Golden Police Department, will limit waterway activities on Clear Creek. These temporary restrictions extend from the western boundary of unincorporated Jefferson County through the eastern limits of the City of Golden, including Vanover Park. Water activities prohibited by the order include all single-chambered air inflated devices such as belly boats, inner tubes and single chambered rafts, as well as body surfing and swimming. Kayaks, whitewater canoes and multi-chambered professionally guided rafts, and river boards are exempt but are encouraged to observe extreme caution due to the safety concerns surrounding swift moving water and floating debris. All of the above authorized users and occupants must have the use of a Type I, Type III, or Type V Coast Guard-approved flotation vests and helmets designed for water use. The reasoning for this decision is as follows: • Clear Creek is a known Type IV water area, which increases public risk due to water temperature, blasted rock, undercut rocks, potential strainers, and other safety considerations. • Water height and flows are expected to rise as the heavy snowpack continues to melt in the coming days. Violators may be issued a summons for a class 2 petty offense, punishable by a fine of up to $100. These restrictions will be strictly enforced in an effort to minimize the risk to those using the waterway. These temporary water restrictions will remain in effect until water levels decrease.show more

🦿Xpeng showed a humanoid robot called IRON whose movement... looked so human that the team literally cut it open on stage to prove it is a machine. IRON uses a bionic body with a flexible spine, synthetic muscles, and soft skin so joints and torso can twist smoothly like a person. The system has 82 degrees of freedom in total with 22 in each hand for fine finger control. Compute runs on 3 custom AI chips rated at 2,250 TOPS (Tera Operations Per Second), which is far above typical laptop neural accelerators, so it can handle vision and motion planning on the robot. The AI stack focuses on turning camera input directly into body movement without routing through text, which reduces lag and makes the gait look natural. Xpeng staged the cut-open demo at AI Day in Guangzhou this week, addressing rumors that a performer was inside by exposing internal actuators, wiring, and cooling. Company materials also mention a large physical-world model and a multi-brain control setup for dialogue, perception, and locomotion, hinting at a path from stage demos to service work. Production is targeted for 2026, so near-term tasks will be limited, but the hardware shows a serious step toward human-scale manipulation.show more

⭕️ Iranian Ministry of Energy While the criminal and... terrorist Zionist regime falsely claims friendship with the Iranian people, a few hours ago, in an inhumane act by revealing its true face of hostility towards the Iranian people, one of the water pipelines around Tehran's Tajrish Quds Square were destroyed as a result of a projectile hit by the terrorist enemy. Despite this malicious act of the infamous Zionist regime, this incident will not disrupt Tehran's drinking water supply, and the water and sewage operational forces have maintained the stability of the water supply to the region's citizens by maneuvering the lines and network, and there will be no problem in the area's water supply. Water and sewage rescue forces are currently on site to repair this pipeline. ▪️Saberin_irshow more

A few months ago, I introduced LAKE and shared... the launch of their $LAK3 token. After reaching several milestones along the way, LAKE recently unveiled a preview of what’s coming next: the LAKE Water Shop. The Water Shop is a blockchain-powered water marketplace where Europeans can purchase real spring water using their $LAK3. Real-world utility for this token turning digital assets into real spring water delivered to your home! This isn’t theory anymore. It’s a real proof-of-concept! LAKE is decentralizing the highly centralized water industry, managing one of the world’s most strategic resources: water A big achievement for LAKE and the entire community!show more

Fun fact. The metal gallium has a melting point... of 30°C (86°F) and will melt quickly when exposed to tea temperature hot water - or melt in one’s hand if handled too long. As a result, this spoon disappears.show more

Coconut Water And Spirulina Comment COCONUT WATER to receive... a link to this recipe and more Say bye-bye to nutritional deficiencies when bringing this combination into your life. Adding spirulina to coconut water makes the spirulina even more easily assimilable. The combination of spirulina and coconut water creates a nutritional blend of trace minerals, electrolytes, macrominerals, proteins, amino acids, and antiviral, antibacterial compounds as well as other phytochemical compounds that assist in all areas of the body. Spirulina’s blue-green pigment can travel far and wide throughout the body once it’s mixed in coconut water. The blue-green pigments, antioxidants, macrominerals, and amino acids from the combination of spirulina and coconut water can also aid in ridding heavy metal toxicity. Try this combination for a critical nutrient and energy boost. You’ll thank yourself. Coconut water is good for every single brain and neurological disorder. It can greatly benefit people with Parkinson’s, and it’s also a must for those with Alzheimer’s or other forms of dementia. It’s incredible for helping to prevent the onset of seizures and offers special support for eye conditions. Coconut Water And Spirulina Ingredients: 2 cups (16 ounces) coconut water 1 teaspoon spirulina Directions: Add coconut water and spirulina to a large glass. Whisk until the spirulina is dissolved. Serve immediately.show more

The bond between dogs and otters, often described as... an unlikely friendship between a "land pup" and a "water pup," is based on shared playfulness, trust, and a mutual language of affection, as in this case of a collie being welcomed with open arms.show more