If you want to get some practice in while playing Modern Warfare 3‚ you can always create a match against bots. This will not grant you weapon XP or progress towards your weapon camo’s but it can be a fun way to fill a game when playing alone or with friends. How to add bots to a game in MW3 PC Invasion To add bots to your game‚ you first need to host a private match. This can be found on the far right of the multiplayer menu. Once you have loaded into this‚ you can set up the rest of the game as you normally would. If your game is local‚ then have your friends add themselves and log in‚ if online‚ then send your invite over. Now‚ simply head across to the right of the screen‚ where you will see plus signs under each team. Select these to bring up a new menu. This menu allows you to select the amount of bots you want to add to the game. Once you have selected the number of bots you want on each team‚ simply choose the option to begin your game...

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Researchers have built nanowires with a precise 1:2:2 ratio of ytterbium‚ rhodium‚ and silicon (YbRh2Si2) in a peculiar phase of matter. This phase is called "strange metal"‚ and true to its name the quantum material is exhibiting behaviors that have challenged expectations. One of these is that electricity in this material does not move as a discrete package.In the cables you have around your house‚ in your devices‚ and across cities‚ electrons carry the electrical energy where it is being requested. But this transmission can happen with any charged particle‚ and sometimes with something that looks and behaves like a particle but is not: a quasiparticle. If something has a distinct charge and is moving through a conductor‚ electricity flows.But measurements of this strange metal hint at more complex behavior. Quasiparticles carrying charge in solids produce something called shot noise. For the YbRh2Si2 nanowires‚ this noise is much lower than what is produced in gold nanowires‚ or the theoretical expectation for a system of quasiparticles. The team says that the electricity is moving in a fluid-like motion.“The shot noise measurement is basically a way of seeing how granular the charge is as it goes through something‚” corresponding author Doug Natelson‚ from Rice University‚ said in a statement.“The noise is greatly suppressed compared to ordinary wires. Maybe this is evidence that quasiparticles are not well-defined things or that they’re just not there‚ and charge moves in more complicated ways. We have to find the right vocabulary to talk about how charge can move collectively.”  The behavior of this material‚ technically known as a heavy-fermion system‚ is likely to be found elsewhere. The researchers wonder if there are deeper connections in what electricity flow is like across a wide range of materials. They also question what possible consequences there are‚ and what applications could be developed if these more fundamental insights are uncovered.“Sometimes‚ you kind of feel like nature is telling you something. This ‘strange metallicity’ shows up in many different physical systems‚ despite the fact that the microscopic‚ underlying physics is very different. In copper-oxide superconductors‚ for example‚ the microscopic physics is very‚ very different than in the heavy-fermion system we’re looking at‚” Natelson said.“They all seem to have this linear-in-temperature resistivity that’s characteristic of strange metals‚ and you have to wonder if there is something generic going on that is independent of whatever the microscopic building blocks are inside them.”The study is published in the journal Science.

Nestled beneath the tranquil surface of Qiandao Lake in Zhejiang Province‚ China‚ lies a submerged world frozen in time – the ancient city of Shicheng‚ a 600-year-old remnant from China’s Imperial past. Often referred to as the “Lion City” (due to its proximity to the nearby Wu Shi Mountain‚ or “Five Lion Mountain”)‚ conflicting reports suggest this sunken wonder was first established either during the Han dynasty between 25-200 CE‚ or Tang dynasty (618-907)‚ but it is agreed that it reached its peak during the Ming and Qing dynasties (1368 to 1912). Despite its incredible architecture‚ the city was deliberately flooded in 1959 to make way for the Xin’an hydroelectric dam. Now‚ the city is hidden 40 meters (131 feet) below the lake’s surface‚ which is located around 400 kilometers (249 miles) south of Shanghai. At the time of its flooding‚ nearly 300‚000 people were relocated. Many of them had deep ancestral and cultural ties to the city.For decades‚ the city was essentially “forgotten” until it was “rediscovered” in 2001‚ when the Chinese government organized an expedition to see what remained of its aquatic creation. Interest in the site was further generated a decade later when Chinese National Geography published an article discussing the city and revealing some never-before-seen photos and illustrations of what it may have looked like in the past.    IFLScience is not responsible for content shared from external sites.Since then‚ other expeditions and exploration have provided photos that have helped us reconstruct the life of this time capsule. Due to it being submerged in freshwater‚ and having relatively low exposure to light and oxygen‚ the city remains amazingly preserved.The city itself wasn’t massive; it measured around half a square kilometer (0.2 square miles). It also had five entrances‚ which was unusual as traditionally‚ others like it only had four that aligned with the cardinal directions. The city also has many beautifully preserved stone statues of various animals‚ including lions‚ dragons‚ and phoenixes‚ along with historical inscriptions that date back to 1777. Today it is possible to visit this hidden world‚ but it is only available to those with proven diving experience‚ especially deep water‚ night‚ and buoyancy experience. This is because the site hasn’t been fully mapped yet and is thus considered unsafe for inexperienced tourists. Despite its existing state‚ keeping it so may well be a challenge. However‚ it is hoped that interest in this site will aid in its conservation‚ allowing Shicheng's silent but vivid remnants to be explored by future generations.  

The world's first all-electric hydrofoil passenger boat has cruised through its “test flight” in Sweden and is now set for serial production at a factory near Stockholm.Designed by Swedish tech company Candela Technology AB‚ the Candela P-12 can travel at 30 knots‚ a record for electric passenger vessels‚ with a range of up to 92 kilometers (50 nautical miles).Much of the vessel's performance is thanks to its hydrofoils‚ wing-like structures mounted on struts below the hull. These lift the vessel out of the water and significantly reduce drag‚ helping the vessel to travel faster. Gliding with the help of the hydrofoil also makes the vessel more energy efficient‚ using 80 percent less energy than conventional ships at high speed.           To ensure a smooth journey‚ the foils are also fitted with sensors and a computer system that gauges wave height and wind speed to stabilize the vessel. The company claims this helps passengers experience 90 percent less g-force than they would on a traditional boat‚ even during rough weather.Measuring just under 12 meters (39 feet) in length‚ the Shuttle version of the boat can fit up to 30 passengers‚ as well as space for bicycles and pushchairs. The Shuttle model will set you back €1.7 million (over $1.8 million)‚ which is apparently a similar price to a comparable boat with a combustion engine‚ but significantly lower than other renewable options. There is also a fancier Business version‚ which features a premium interior with seating for 12 to 20 passengers‚ plus suitcases.Candela has already rolled out a number of small leisure boat models for private customers‚ but the P-12 aims to be the company’s first foray into commercial vessels."The P-12 is a platform that will cater to a vast range of clients. Whether it's public transport fleets‚ VIP services‚ or private customers‚ it will revolutionize how we travel on water‚" Gustav Hasselskog‚ CEO of Candela Technology‚ said in a statement.An artist's illustration of the fancy "Business" model's interior.Image credit: Candela Technology ABSweden’s capital‚ Stockholm‚ is a waterfront city scattered across 14 islands‚ so water-based transport has the potential to play a big role in the city’s infrastructure. If the pilot scheme goes to plan‚ Candela aims to have their P-12 Shuttle join Stockholm's public transport network in 2024."Today‚ in many cities‚ congested roads are common while waterways — humanity's oldest transport infrastructure — remain underutilized for rapid commuting. The P-12 will let you use these waterways as green highways‚ enabling fast intra-city connections. Often‚ the quickest route is by water‚" added Hasselskog.Maritime transport currently accounts for 3 percent of global carbon emissions‚ and that is a figure set to rise to 13 percent in the coming decades if no action is taken. While the move towards electric ships has been slow and hit many hurdles‚ the trend is slowly growing trajectory. Two years ago‚ an autonomously electric-powered cargo ship set out on its maiden voyage in Norway.

Stubbing your toe is the perfect example of disproportionate pain. As your pinky collides with the unforgiving corner of your coffee table‚ it can feel as if your phalanx has just erupted through the skin of your toe‚ and yet five minutes later it’s basically fine. Given the intensity of feeling from such a minor ailment‚ it got us wondering: can pain kill you?What is pain?Humans are highly sensitive due to a complex network of nerves that runs throughout our entire body (the first-ever complete dissection of the human nervous system demonstrates how extensive it is). Packed full of danger-detecting nociceptors‚ our nerves can pick up on changes in temperature‚ chemical balance‚ or pressure‚ but the pain isn’t felt by those nerves‚ because pain is sensed by the brain.When you stub your toe the pain isn’t actually in your toe. Pain is the result of the brain evaluating information‚ combining sensory information with expectations based on previous exposure to pain.This means that when the brain produces pain‚ it chooses a location based on a “best guess scenario”. Usually‚ the brain gets it right‚ but sometimes it doesn’t‚ as in the case of referred pain that can tell you the ouchie is in your shoulder when actually it’s caused by something that’s gone wrong in the abdomen‚ for example.So‚ if pain is essentially the interpretation of information by the brain…Can pain kill you?Pain itself can't kill you‚ but its physiological effects can‚ and it will come as no surprise that it’s one of the louder symptoms of a range of potentially deadly illnesses and injuries. Viruses are one example here.“When you catch a virus‚ your immune system reacts to protect your body. It initiates inflammation – and pain is one of the cardinal signs of this inflammation‚” Dr Franziska Denk‚ a senior lecturer at Kings College London who focuses on pain research‚ told IFLScience.“Pain is caused by nerves in your body sensing that your immune cells are active and thus that your body is under attack. The nerves react by sending signals to your brain to encourage you to rest and not move about too much until the immune system has done its job and the inflammation has resolved.”Aside from the underlying illnesses or injuries that cause severe discomfort‚ pain can also contribute to a person’s risk of death because of the stress it puts on the body. What pain does to the body“Severe pain is a horrific stress‚” wrote Forest Tennant in Practice Pain Management. “Severe pain flares‚ acute or chronic‚ cause the hypothalamic-pituitary-adrenal axis to produce glucocorticoids (cortisol‚ pregnenolone) and catecholamines (adrenalin and noradrenalin) in an effort to biologically contain the stress. Catecholamines have a direct‚ potent stimulation effect on the cardiovascular system and severe tachycardia and hypertension result.”Pain flares like this can push a person’s heart rate up to over 100 beats a minute and cause dangerously high blood pressure‚ which is especially devastating in patients with existing health issues‚ and it can be pushed even higher by another side effect of extreme pain.“In addition to adrenal catecholamine release‚ pain flares cause overactivity of the autonomic‚ sympathetic nervous system‚ which add additional stimulation to catecholamine-induced tachycardia and hypertension‚” Tennant continued. “The combined physiologic effects of excessive catecholamine release and autonomic‚ sympathetic discharge may put such strain on the heart to cause coronary spasm‚ cardiac arrhythmia‚ and sudden death.”So‚ while pain itself isn’t a direct cause of death‚ it can have a significant influence on a patient’s outcome if it isn't managed properly. Fortunately‚ the field of anesthesia means we can block even extreme pain‚ allowing surgeons to cut people open without them having to feel a thing.But as far as stubbing your toe in the shower goes? You’re going to have to brave that by yourself.All “explainer” articles are confirmed by fact checkers to be correct at time of publishing. Text‚ images‚ and links may be edited‚ removed‚ or added to at a later date to keep information current. 

The skincare habits of a pod of orcas have been captured in world-first footage of a rare behavior. Filmed as part of National Geographic WILD's new series Incredible Animal Journeys‚ the clip shows the animals using the rough surface of icebergs as a way to exfoliate irritants. Does skincare get any fresher?The behavior appears to be an adaptation that helps these animals to overcome one of the downsides of swimming in the chilly waters of Antarctica."We all need to look after our skin‚ but this pod of orca has a unique problem. Unable to molt in these sub-zero seas‚ a yellowy green algae builds up on their skin‚" producer Sarah Gibbs told Newsweek. "This family pod has learned to exfoliate the outer surfaces of their skin using icebergs as scratching posts. It shows just how smart and resourceful orca are‚ and shows another side to these 'killer' whales.”An alternative solution to the pesky algae is to swim around 11‚200 kilometers (7‚000 miles) to a climate where the water is warm enough for the orcas to molt‚ clearing their skin. As anyone who’s ever given up on a lengthy skincare regimen can relate to‚ sometimes that’s just too much effort for a scrub."If you're feeling the itch‚ you have to look for something closer to home‚" Gibbs continued.Incredible Animal Journeys  Starts on 3rd December at 8pm on National Geographic WILDWhen they do make the journey‚ it’s thought to be the longest migration any animal makes solely for the purposes of looking after their skin‚ and NatGeo's is the first documentary to capture it in a video. Incredible Animal Journeys starts on December 3 at 8pm GMT on National Geographic WILD.Orca (Orcinus orca) are famously intelligent animals‚ but they aren’t the only cetaceans known to practice complex skincare routines. In 2022‚ researchers captured footage of a group of dolphins self-medicating by rubbing themselves against corals.Aggravating the corals caused them to release mucus‚ containing 17 active metabolites in the lab which had antibacterial‚ antioxidative‚ hormonal‚ and toxic properties. It seems the dolphins make use of the bioactive compounds in the coral species’ exudates to make their skin happier.Considering we humans have tried everything from puppy fat and salty owls‚ to skull lichen and sleeping with mummified remains to cure our ills‚ rubbing against some ice or corals doesn’t seem so weird. And let’s not even go there with the boob toothpaste thing.