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Never Heard of Methane Hydrate? That Might be Good News

Never Heard of Methane Hydrate? That Might be Good News

Methane hydrate is an ice-like crystalline substance (gas clathrate) made of water molecules encasing a molecule of methane.

Snap to Structure

Snap to Structure

A ubiquitous example of the "snap to" structure in Adobe Photoshop occurs in floating-point arithmetic.

Graph Representations of Fractured Media in the Subsurface

Graph Representations of Fractured Media in the Subsurface

Fractures are the primary pathways for fluid flow in low-permeability subsurface media, such as shale or granite.

Randomization in Characterizing the Subsurface

Randomization in Characterizing the Subsurface

Current methods for characterizing Earth’s subsurface are not sufficiently accurate to meet the needs of modern applications.

Physics-based Probing and Prediction of Extreme Events

Physics-based Probing and Prediction of Extreme Events

Extreme events are unexpected, transient phenomena with large magnitudes that take place over short time scales.

The High-Performance Conjugate Gradients Benchmark

The High-Performance Conjugate Gradients Benchmark

The High-Performance Conjugate Gradients Benchmark complements the HPL Benchmark and is part of the TOP500 effort.

Slings, Bullets, Blow-up, and Linearity

Slings, Bullets, Blow-up, and Linearity

Simple ordinary differential equations can explain the surprisingly long range of a sling versus the surprisingly short range of a bullet.

How Paradoxes Shape Mathematics and Give Us Self-verifying Computer Programs

How Paradoxes Shape Mathematics and Give Us Self-verifying Computer Programs

In his talk at AN18, Thomas Hales will explain how some paradoxes play into self-verifying computer programs.

Seeing Through Rock: Mathematics of Inverse Wave Propagation

Seeing Through Rock: Mathematics of Inverse Wave Propagation

In his talk at AN18, Bill Symes will discuss our knowledge of Earth's interior and how it is an inverse problem.

Pursuing Science and Logic in an Age of Excitement and Turmoil

Pursuing Science and Logic in an Age of Excitement and Turmoil

Ernest Davis reviews Exact Thinking in Demented Times: The Vienna Circle and the Epic Quest for the Foundations of Science by Karl Sigmund.

Mathematics at the Upcoming AAAS Annual Meeting

Mathematics at the Upcoming AAAS Annual Meeting

At its 2018 Annual Meeting, the AAAS will sponsor a symposium on mathematical approaches to major challenges.

Sign Up for SIAM’s Science Policy Alerts

Sign Up for SIAM’s Science Policy Alerts

As most SIAM members are aware, science policy decisions greatly affect the state of scientific research.