Pascal Triangle Intensities

Pascal triangle intensities describe the relative abundance of products or signals produced when identical components can occur in two distinguishable forms, making them a useful combinatorial model in chemistry. Each row represents the number of components, while successive entries give the combinations associated with different compositions; these coefficients predict relative intensities when the alternatives have equal probability. In mass spectrometry, this pattern helps interpret isotope clusters by relating peaks to the number of heavier and lighter isotopes present. Comparing calculated Pascal-triangle ratios with experimental spectra can support molecular identification, isotope-pattern analysis, and recognition of deviations caused by unequal isotope abundances.

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Education

JoVE Core - Math Fundamentals

Binomial Expansion Using Pascal's Triangle

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2025

Expanding a binomial expression such as (a + b)n results in a predictable sequence of terms that can be systematically derived using Pascal’s Triangle. This triangular array of numbers plays a central role in understanding and computing the coefficients of binomial expansions.Pascal’s Triangle is constructed such that each row corresponds to the coefficients of a binomial raised to a power. The topmost row, known as the zeroth row, corresponds to (a + b)0, and each successive row gives the...

Application of Pascal's Law

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2023

Pascal's experimentally proven observations—that a change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid and to the walls of its container—provide the foundations for hydraulics, one of the most important developments in modern mechanical technology. Hydraulic systems are used to operate automotive brakes, hydraulic jacks, and numerous other mechanical systems. We can derive a relationship between the forces in a simple hydraulic system by applying...

Pascal's Law

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2023

In 1653, the French philosopher and scientist Blaise Pascal published "Treatise on the Equilibrium of Liquids," which discussed the principles of static fluids. A static fluid is a fluid that is not in motion. When a fluid is not flowing, we say that the fluid is in static equilibrium. If the fluid is water, we say it is in hydrostatic equilibrium. For a fluid in static equilibrium, the net force on any part of the fluid must be zero; otherwise, the fluid will start to flow. Pascal observed...

Trigonometry of Right Triangles

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2025

In a right triangle, trigonometric functions establish specific ratios that describe the relationship between the lengths of the triangle's sides and its acute angles. These relationships are foundational in understanding the structure of right-angled geometry. The sine function quantifies the proportion of the side opposite a given angle compared to the triangle's hypotenuse. In contrast, the cosine function expresses how the side adjacent to the angle relates to the hypotenuse in terms of...

Research

JoVE Journal - Engineering

High-Sensitivity Nuclear Magnetic Resonance at Giga-Pascal Pressures: A New Tool for Probing Electronic and Chemical Properties of Condensed Matter under Extreme Conditions

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Cited by 8 •

2014

Nuclear magnetic resonance is one of the most important spectroscopic tools. Here, the development of a new approach under high pressure, currently up to 10.1 GPa, is presented. This opens a new window into condensed matter physics and chemistry, where high-pressure research is of great importance.

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