Intellect PlusCards starting with P
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Projected movies arrived decades after motion toysBefore the Lumière brothers' paying Paris show on 28 December 1895, phantasmagoria, phenakistiscopes, Muybridge's famous horse studies, and Edison's peep-box Kinetoscope already t…
Prokofiev left revolutionary Russia then composed War and PeaceSergei Prokofiev (1891–1953) shocked Saint Petersburg with ferociously dissonant piano music, left Russia after 1917 with official blessing, and came home in 1936 to write Peter a…
Prokofiev's Romeo and Juliet was first written with a happy endingProkofiev's first version of Romeo and Juliet let the lovers survive, defying Shakespeare. Soviet officials objected, the Bolshoi shelved it, and the full ballet first reached the…
Proline is the structural rebel of the amino acid world, defying standard protein rules.Unlike its peers, proline is a secondary amine with a rigid, five-membered ring structure. This unique geometry forces it to break the rules of protein folding, acting as a struct…
Proline metabolism may influence whether cells survive or die under stressResearchers reviewing the role of the amino acid proline have found that its metabolism can drive cellular signaling processes that promote either survival or programmed cell deat…
Proof that camouflage actually saves prey only arrived in 2016Naturalists have praised camouflage since Aristotle watched octopuses match the stones around them. Yet the first experiment showing it truly keeps prey alive came only in 2016, f…
Propaganda began as the name of a Vatican missionary office in 1622In 1622, as part of the Counter-Reformation, the Catholic Church set up the Congregation for Propagating the Faith to spread Catholicism in non-Catholic lands, known informally as…
Propagating honeysuckle is surprisingly simple when you master the art of softwood cuttingsHoneysuckle is a fragrant, bee-friendly climber that roots reliably from fresh, seasonal growth. By selecting the right stems in spring or early summer, you can easily expand your…
Property management is the operational backbone that keeps real estate assets functioning and profitable.Beyond collecting rent, property managers act as essential intermediaries between owners and tenants. They navigate complex legal landscapes, coordinate maintenance, and leverage …
Proplyds are the cosmic nurseries where stars and planets fight for survival against radiationA proplyd is a protoplanetary disk being stripped away by the intense radiation of nearby massive stars. These ionized structures, found primarily in the Orion Nebula, reveal the …
Prosecco is a protected geographical name, not a grape variety or a single village.Once known as the grape variety Glera, Prosecco has been transformed by Italian law into a strictly defined geographical designation. While the world associates the name with spar…
Prostaglandins are the body's local chemical messengers, regulating everything from inflammation to labor induction.These hormone-like lipid compounds act as powerful, localized signals throughout your body. Unlike endocrine hormones produced in specific glands, prostaglandins are synthesized i…
Prostatectomy: Understanding the Surgical Removal of the Prostate GlandProstatectomy involves the excision of the prostate gland, a procedure performed for both benign conditions and malignant cancer. While techniques range from open surgery to robot…
Protagoras was supposedly discovered as a porter who tied firewood with perfect geometryLegend says the philosopher Democritus spotted a young porter in Abdera whose bundle of sticks was bound with such precise geometry that he must be a genius, and took him in. That…
Protea flowers are named for a Greek god who kept changing shapeLinnaeus named Protea after Proteus, the sea god who could take many forms, and the family lives up to it. Proteaceae run from ground-hugging shrubs to 40-metre forest trees, with…
Protect your basement from water damage by replacing an aging window well.Mason Mark McCullough demonstrates the step-by-step process of removing and replacing a basement window well. This guide is essential for homeowners looking to maintain their prop…
Protect your fruit harvest from hungry birds without harming local wildlife in your gardenSharing your garden harvest with local wildlife is a rewarding practice, but when birds threaten to decimate your entire crop, netting becomes a necessary intervention. By constru…- Protect your garden soil through winter without wasting your valuable spring compost supplyWinter gardening is primarily about soil protection. This guide demonstrates how to maintain healthy, living beds during the coldest months by using natural mulch alternatives ins…
Protect Your Home From Wildfires And Silence Those Annoying Squeaky Floors TodayThis episode of This Old House provides essential home maintenance strategies, from wildfire prevention techniques to simple household hacks. You will learn how to secure your pro…
Protect your home from winter pests and master your smart thermostat settings today.As temperatures drop, rodents seek warmth inside your walls. This episode provides expert strategies to seal your home against pests, optimize smart thermostats for energy efficie…
Protect your home plumbing system by installing a water pressure reducing valveHigh water pressure can damage your home's plumbing. Plumbing expert Richard Trethewey demonstrates how to install a pressure-reducing valve to manage and stabilize water flow, en…
Protecting Earth from space rocks requires a global human networkAsteroid impacts are a cosmic roll of the dice, but we are no longer defenseless. From successful kinetic strikes to international policy coordination, humanity is building a mult…
Protecting half of Earth's land requires a focus on specific ecoregionsResearchers using a map of 846 terrestrial ecoregions found that only 12% of these areas currently meet the goal of being half protected. While 37% of ecoregions have enough unalt…
Protecting interview participants from distress after sensitive research is completeResearchers exploring sensitive topics like family life often encounter unexpected emotions. An analysis of oral history and sociology literature found that ethical responsibiliti…
Protecting seagrass meadows is essential for global climate and biodiversity goalsResearchers examining the ecological importance of seagrasses found that these marine plants play a vital role in stabilizing coastal environments. Because these global meadows ac…
Protecting the Brown-headed Spider Monkeys of EcuadorJoin Dr. Citlalli Morelos Juárez as she explores the vital work required to study and protect the Brown-headed Spider Monkey within the diverse ecosystems of Ecuador.
Protecting the drinking water for millions of Georgians in the Seventh Congressional DistrictThe Seventh Congressional District of Georgia is a diverse region spanning northern Atlanta suburbs and beyond. Beyond its shifting political landscape and economic hubs, the dist…
Protecting the heart: The high-stakes geometry of breast cancer radiationTreating left breast cancer requires a delicate balancing act: destroying the tumor while sparing the heart and lungs. Because the left anterior descending coronary artery (LAD) s…
Protecting the Okavango Delta, Africa's largest remaining wetland wildernessIn this talk, TED Fellow Steve Boyes details the scientific surveys used to monitor and safeguard one of Earth's most fragile habitats from the growing threats of development.
Protecting the Okavango: A conservation mission millennia in the makingExplore the vital efforts to preserve the Okavargo River Basin. This National Geographic film examines the long-term significance of conserving this unique ecosystem and the endur…- Protecting the Trade: The Hidden Risks of Contracting LiabilityOwning a construction business involves more than just skilled labor; it requires navigating complex legal and financial hazards. This discussion explores how contractors can safe…
Protecting your capital: five common investment scams you should learn to recognize todayInvestment fraud remains a persistent threat to individual wealth. This video outlines five prevalent schemes to help viewers identify and avoid deceptive practices. It serves as …
Protecting your renovation: what to demand from your contractor's insuranceA home renovation can quickly become a liability nightmare. Learn the essential questions homeowners must ask contractors regarding insurance coverage to safeguard their property …
Protein oxidation can degrade the nutritional value and quality of muscle foodsA review of research into muscle foods found that their high protein and amino acid content makes them particularly vulnerable to oxidative degradation. This process can negativel…
Protein p62 binds directly to autophagy machinery to clear protein clumpsResearchers studying cells in the lab found that the protein p62/SQSTM1 binds directly to the autophagy proteins LC3A and LC3B. This interaction, mediated by a short 22-amino-acid…
Protein powder began as cheese waste that was choking American riversWhey, the watery leftover from cheesemaking, was once simply dumped into US rivers and streams. Its protein fed thick blooms of algae that blocked light and oxygen, so the practic…- Proteins are not just chains of amino acids; they are complex, self-folding molecular machines.Proteins are the workhorses of life, defined by their precise three-dimensional shapes. While they begin as simple, linear sequences of amino acids, they fold into intricate, func…
Protestant England preferred 'socialist' because 'communist' sounded too CatholicIn nineteenth-century England, communism sounded uncomfortably close to the Catholic rite of communion, and across Christian Europe communists were assumed to be atheists. Sociali…
Protists are defined by what they are not, and most remain unnamedBiologists define protists by exclusion: any organism with a nucleus that is not an animal, land plant or fungus. That leftover category turns out to hold most of the diversity of…
Proto-Anatolian is the ancient linguistic ancestor that preserved the lost sounds of Indo-EuropeanProto-Anatolian is the hypothetical parent language of Hittite and its relatives. Unlike other Indo-European branches, it uniquely retained laryngeal consonants, offering a rare w…
Protohistory: The shadowy bridge between silent prehistory and the dawn of written recordsProtohistory describes the elusive era when a society lacks its own writing system but appears in the records of literate neighbors. It is a transitional space where archaeology m…
Proton exchange membrane electrolysis offers a clean path to high-purity hydrogenA review of hydrogen production technologies found that proton exchange membrane (PEM) water electrolysis is a promising method for generating high-purity hydrogen. This process u…
Protozoa once included corals and jellyfish as the first animalsWhen the zoologist Georg Goldfuss coined the word protozoa in 1818, meaning first animals, he threw in not just microbes but sponges, corals, jellyfish and rotifers. Two centuries…- Provenance is the invisible paper trail that transforms a simple object into history.Provenance is more than a list of owners; it is the documented life story of an object. From art to archives, this chain of custody authenticates value and reveals hidden truths. …
- Providence Island: A site of historical collision and the path toward national reconciliationProvidence Island marks the 1822 meeting point between indigenous residents and settlers arriving from the United States. This documentary explores how early social tensions influ…
Providence literally means seeing ahead, and theologians still argue how farThe word providence comes from Latin roots meaning to see ahead. In theology it names God's care for the world, but traditions split sharply over the details: does God steer every…
Proving a ghost exists would instantly stop it being paranormalThe paranormal has a built-in trap. Anything that science could confirm would simply become part of science, so no phenomenon can ever be verified as paranormal by definition. Tha…
Proving a sequence converges without knowing its limit is surprisingly possible.Vicky Neale explains how to determine if a sequence converges in her first-year Analysis 1 course at Oxford. This lecture offers a practical look at monotonic sequences, showing h…
Proving four colours suffice for any map took 124 years and a computerIn October 1852 Francis Guthrie, colouring a map of English counties, noticed he never needed more than four colours to keep neighbouring counties distinct. His question baffled A…- Proving four colours suffice for any map took a century and a computerIn 1852 Francis Guthrie asked whether four colours are always enough to paint a map so that neighbouring regions differ. Mathematicians offered wrong proofs for over a hundred yea…
Proving that certain complex geometric shapes belong to finite familiesMathematicians have long sought to understand the boundaries of Fano varieties, which are specific types of complex algebraic shapes. Researchers who studied these structures foun…
Prudence is not just caution; it is the charioteer of all human virtues.Often mistaken for mere timidity, prudence is actually the intellectual engine of moral life. Known to the ancients as phronesis, it is the ability to discern the right action in …
Prudential bought one estate agency office for £200,000 and later sold it for £1The insurer famous for the 'Man from the Pru' began in Hatton Garden in 1848 lending money to working people. Its history since includes penny-a-week policies, a disastrous dash i…- Prudnik: A Polish border town defined by its fast-flowing river and turbulent historyFounded in the 1250s as a Bohemian stronghold, Prudnik has cycled through the hands of dukes, kings, and empires. Named for its rapid river currents, this town has survived plague…
Pruning is more than just cutting; it is a precise intervention in plant biology.Pruning is the selective removal of plant parts to improve health, safety, and productivity. While it seems simple, the technique matters immensely. Proper cuts allow a tree to he…
Pruning Roses: Timing Depends Entirely on the Bloom CycleDo all roses require the same pruning schedule? Not at all. The timing and technique must shift based on whether your variety blooms only once or repeats its show. Understanding t…
Prussia stole Silesia and rewired Europe's alliancesWhen Charles VI died in 1740, Maria Theresa's right to Austria was contested from Paris to Berlin. Frederick II seized rich Silesia within weeks; eight years of war confirmed her …
Prussia was once a Baltic pagan land before becoming a German-led European powerThe name Prussia refers to three distinct entities: a Baltic tribal region, a Hohenzollern-ruled kingdom, and a modern German state. Its evolution from a pagan territory on the Ba…- Prussia's Soldier King docked officials six months' pay for skipping a meetingFrederick William I inherited a treasury his father had drained on palaces and a royal title. He answered with relentless thrift, a rulebook of 297 paragraphs for civil servants, …
Prussia's soldier king spent most of his budget on the armyFrederick William I of Prussia, nicknamed the Soldier King, launched sweeping military reforms in 1713 and pushed army spending to 73 percent of the state's annual budget. When he…