Johannes Leissen

15 articles
Johannes Leissen has a keen eye for detail and a deep curiosity for exploring the world’s intricacies. When he’s not immersed in his latest passion, Johannes enjoys tinkering with creative projects, wandering through local markets, and finding inspiration in the everyday beauty of life.
Scientific diagram showing human genetic variation clines and population gradients

Is Race a Real Biological Concept?

Ask a biologist whether race is biologically real and you’ll hear a careful answer: human biological variation is...

Map showing Switzerland's location surrounded by EU member states

Why Is Switzerland Not in the European Union?

Discover why Switzerland, despite deep EU ties, remains outside the bloc. Explore its history, neutrality, sovereignty, and unique...

How to get Really Good at basketball

How to Get Really Good at Basketball

Learn how to master basketball fundamentals, improve your dribbling, shooting, and defense, and develop the work ethic needed...

mold

How to Get Rid of Mold Naturally

Learn safe, natural ways to remove mold without harsh chemicals. Discover eco-friendly solutions for a healthier home and...

Pheromones

Pheromones: How Invisible Chemicals Influence Our Behavior

Explore how pheromones—invisible chemical signals—shape human behavior, social interactions, and reproduction. Uncover the science behind these powerful ...

how to build strong relationships

How to Build Strong Relationships

Learn how to build strong relationships with trust, integrity, and emotional intelligence. Discover evidence-based strategies for lasting personal...

anime drawing tips

How to Create Anime-Inspired Art: A Comprehensive Guide for Beginners

Learn to create stunning anime-inspired art with our step-by-step guide for beginners. Master techniques, tools, and stylistic elements...

Microplastics

Microplastics: Impact on Health and Environment Explained

Discover the hidden dangers of microplastics in our environment and bodies. Learn about their origins, health impacts, and...

sneezing

Why Do People Say Bless You When Someone Sneezes?

Explore the fascinating origins of saying 'bless you' after sneezes. Uncover historical, cultural, and religious roots behind this...

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16 Remarkable Facts About Crows That Will Surprise You

Discover 16 surprising facts about crows, from their incredible intelligence and tool-making skills to their ability to recognize...

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Is Jazz a Dead Genre of Music?

Explore whether jazz is a dead genre. Discover its history, cultural impact, and modern evolution. Is jazz still...

Synesthesia

Synesthesia: Why Some People See Sounds and Experience Blended Senses

Explore synesthesia: a rare neurological condition where senses blend, like seeing sounds or tasting words. Learn about its...

human

What Is a Human Chimera, and How Does It Occur?

Explore human chimerism: rare individuals with two sets of DNA. Learn how it occurs, its types, medical implications,...

Systems thinking

What is Systems Thinking, and What is it Good For?

Discover systems thinking: a holistic approach to problem-solving that tackles complex issues like climate change and organizational dysfunction....

watercolor

How to Use Masking Fluid: A Comprehensive Guide for Artists

Master masking fluid techniques for watercolor art. Learn to preserve highlights, create fine details, and achieve precision in...