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@openstem · Joined Jul 2026
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Astronomy

Astronomy · L4 · Choosing an orbital-energy regime from vis-viva

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Astronomy · L4 · Choosing an orbital-energy regime from vis-viva
Flowchart17 objects
Astronomy

Astronomy · L4 · From differential gravity to tidal locking

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Astronomy · L4 · From differential gravity to tidal locking
Flowchart14 objects
Astronomy

Astronomy · L4 · From blackbody temperature to observable stellar properties

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Astronomy · L4 · From blackbody temperature to observable stellar properties
Flowchart17 objects
Astronomy

Astronomy · L4 · From the equivalence principle to observational tests of GR

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Astronomy · L4 · From the equivalence principle to observational tests of GR
Flowchart15 objects
Astronomy

Astronomy · L4 · The unified AGN model: same engine, different viewing angle

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Astronomy · L4 · The unified AGN model: same engine, different viewing angle
Flowchart12 objects
Astronomy

Astronomy · L4 · From density fluctuations to observed CMB anisotropies and structure

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Astronomy · L4 · From density fluctuations to observed CMB anisotropies and structure
Flowchart13 objects
Astronomy

Astronomy · L4 · Which Lagrange Point?

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Astronomy · L4 · Which Lagrange Point?
Flowchart12 objects
Astronomy

Astronomy · L4 · Building a Star's Space Velocity

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Astronomy · L4 · Building a Star's Space Velocity
Flowchart19 objects
Astronomy

Astronomy · L5 · Hertzsprung–Russell Diagram: Stellar Populations

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Astronomy · L5 · Hertzsprung–Russell Diagram: Stellar Populations
Flowchart17 objects
Astronomy

Astronomy · L5 · FLRW Cosmology: Expansion and Energy Content

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Astronomy · L5 · FLRW Cosmology: Expansion and Energy Content
Flowchart15 objects
Astronomy

Astronomy · L5 · Formation of a Schwarzschild Black Hole

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Astronomy · L5 · Formation of a Schwarzschild Black Hole
Flowchart17 objects
Astronomy

Astronomy · L5 · Binary Inspiral: From Wide Orbit to Chirp Detection

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Astronomy · L5 · Binary Inspiral: From Wide Orbit to Chirp Detection
Flowchart21 objects
Astronomy

Astronomy · L5 · Evidence for Dark Matter and Candidate Particles

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Astronomy · L5 · Evidence for Dark Matter and Candidate Particles
Flowchart20 objects
Astronomy

Astronomy · L5 · Hierarchical Halo Assembly and Galaxy Growth

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Astronomy · L5 · Hierarchical Halo Assembly and Galaxy Growth
Flowchart15 objects
Astronomy

Astronomy · L5 · From Viscous Accretion to the Eddington Limit

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Astronomy · L5 · From Viscous Accretion to the Eddington Limit
Flowchart19 objects
Astronomy

Astronomy · L5 · Neutron Star Merger to Kilonova and Multi-Messenger Detection

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Astronomy · L5 · Neutron Star Merger to Kilonova and Multi-Messenger Detection
Flowchart13 objects
Astronomy

Astronomy · L5 · From Millisecond Pulsar Timing to the Nanohertz Gravitational-Wave Background

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Astronomy · L5 · From Millisecond Pulsar Timing to the Nanohertz Gravitational-Wave Background
Flowchart13 objects
Astronomy

Astronomy · L5 · From Leptogenesis to the Observed Baryon Asymmetry

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Astronomy · L5 · From Leptogenesis to the Observed Baryon Asymmetry
Flowchart11 objects
Astronomy

Astronomy · L5 · What Sets the Sign of the 21 cm Brightness Temperature

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Astronomy · L5 · What Sets the Sign of the 21 cm Brightness Temperature
Flowchart16 objects
Astronomy

Astronomy · L5 · The GW170817 Multi-Messenger Detection Timeline

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Astronomy · L5 · The GW170817 Multi-Messenger Detection Timeline
Flowchart11 objects
Astronomy

Astronomy · L5 · Approaching Jet or Receding Counter-Jet?

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Astronomy · L5 · Approaching Jet or Receding Counter-Jet?
Flowchart17 objects
Astronomy

Astronomy · L5 · s-process or r-process?

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Astronomy · L5 · s-process or r-process?
Flowchart13 objects
Astronomy

Astronomy · L5 · Crossing Toward a Rotating Black Hole

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Astronomy · L5 · Crossing Toward a Rotating Black Hole
Collection11 items
01Engineering · L1 · Simple Machines
02Engineering · L1 · Simple Machines Quiz
03Engineering · L1 · How a Lever Works
+8 more
Engineering

Engineering · Mechanics & Structures

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Engineering · Mechanics & Structures
Collection5 items
01Engineering · L1 · What Do Engineers Do?
02Engineering · L1 · The Design Process: Ask, Imagine, Build, Test
03Engineering · L1 · Design Process Quiz
+2 more
Engineering

Engineering · Design & Process

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Engineering · Design & Process
Collection7 items
01Engineering · L1 · What Do Engineers Do?
02Engineering · L1 · Simple Machines
03Engineering · L1 · The Design Process Steps
+4 more
Engineering

Engineering · L1 · Machines & Design

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Engineering · L1 · Machines & Design
Collection4 items
01Engineering · L1 · What Are Materials?
02Engineering · L1 · What Are Materials?
03Engineering · L1 · Picking a Material for the Job
+1 more
Engineering

Engineering · L1 · What Are Materials?

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Engineering · L1 · What Are Materials?
Collection4 items
01Engineering · L1 · Strong Shapes
02Engineering · L1 · Strong Shapes: Triangles vs Squares
03Engineering · L1 · Pushing On A Square Frame vs A Triangle Frame
+1 more
Engineering

Engineering · L1 · Strong Shapes

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Engineering · L1 · Strong Shapes
Collection4 items
01Engineering · L1 · Building Simple Circuits
02Engineering · L1 · Build Your First Circuit
03Engineering · L1 · Building a Circuit, Step by Step
+1 more
Engineering

Engineering · L1 · Building Simple Circuits

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Engineering · L1 · Building Simple Circuits
Collection4 items
01Engineering · L1 · Tools & Safety
02Engineering · L1 · Picking the Right Tool, and Staying Safe
03Engineering · L1 · Choosing the Right Tool
+1 more
Engineering

Engineering · L1 · Tools & Safety

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Engineering · L1 · Tools & Safety

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