MultiL · Texts

Read across five tongues.

Short articles and everyday conversations — Arabic fully vowelled, Japanese with furigana, English, Indonesian, and Chinese, each with a Thai gloss. Pick a language, pick a field, start reading.

25 articles · science · page 1 / 2

JA · article

みずみっつのすがた

The Three States of Water

Water exists as solid ice, liquid water, and water vapor gas depending on temperature.

science · beginner
JA · article

太陽たいようひかり

The Sun and Sunlight

The Sun is a giant star that provides light and heat energy essential for life on Earth.

science · beginner
JA · article

空気くうきなかみ

What Is Air Made Of

Air is a mixture of gases, mainly nitrogen and oxygen, that surrounds the Earth.

science · beginner
JA · article

植物しょくぶつ育ち方そだちかた

How Plants Grow

Plants need sunlight, water, and nutrients from soil to grow and produce food through photosynthesis.

science · beginner
JA · article

重力じゅうりょくってなに

What Is Gravity

Gravity is the force that pulls objects toward the Earth and keeps planets in orbit around the Sun.

science · beginner
JA · article

あめふるしくみ

How Rain Falls

Rain forms when water evaporates, rises as clouds, and falls back to Earth as precipitation.

science · beginner
JA · article

人間にんげんからだほね

The Human Body and Bones

The human skeleton has 206 bones that support the body, protect organs, and allow movement.

science · beginner
JA · article

おとつたわり方つたわりかた

How Sound Travels

Sound travels as vibrations through air and other materials, reaching our ears as waves.

science · beginner
JA · article

むしへんしんチョウの一生いっしょう

Insect Metamorphosis — A Butterfly's Life Cycle

Butterflies undergo complete metamorphosis through four stages: egg, larva, pupa, and adult.

science · beginner
JA · article

細胞さいぼう生命せいめい基本単位きほんたんい

The Cell — Basic Unit of Life

All living organisms are made of cells, which carry out the chemical processes that sustain life.

science · intermediate
JA · article

電気でんき磁気じきのつながり

The Connection Between Electricity and Magnetism

Electricity and magnetism are two aspects of electromagnetism, unified by Maxwell's equations in the 19th century.

science · intermediate
JA · article

DNA遺伝いでん

DNA and Heredity

DNA is a double-helix molecule that encodes genetic instructions passed from parents to offspring.

science · intermediate
JA · article

化学反応かがくはんのうエネルギー

Chemical Reactions and Energy

Chemical reactions rearrange atoms to form new substances, releasing or absorbing energy in the process.

science · intermediate
JA · article

地震じしんメカニズム

The Mechanism of Earthquakes

Earthquakes occur when tectonic plates suddenly slip along fault lines, releasing stored elastic energy.

science · intermediate
JA · article

光のひかりの屈折くっせつにじ

Refraction of Light and Rainbows

Rainbows form when sunlight refracts and reflects inside water droplets, separating white light into its spectrum.

science · intermediate
JA · article

宇宙うちゅう大きさおおきさほし一生いっしょう

The Scale of the Universe and a Star's Life Cycle

Stars are born in nebulae, live for billions of years fusing hydrogen, then die as white dwarfs or supernovae.

science · intermediate
JA · article

免疫めんえきシステムのしくみ

How the Immune System Works

The immune system defends the body against pathogens using physical barriers, innate responses, and adaptive immunity.

science · intermediate
JA · article

量子力学りょうしりきがく基礎きそ波となみと粒子りゅうし二重性にじゅうせい

Foundations of Quantum Mechanics — Wave-Particle Duality

Quantum mechanics reveals that particles like electrons exhibit both wave-like and particle-like properties depending on how they are observed.

science · advanced
JA · article

相対性理論そうたいせいりろん時空じくう曲がりまがり

General Relativity and the Curvature of Spacetime

Einstein's general relativity describes gravity not as a force but as the curvature of spacetime caused by mass and energy.

science · advanced
JA · article

CRISPRゲノム編集げのむへんしゅう革命かくめい

CRISPR — The Genome Editing Revolution

CRISPR-Cas9 allows scientists to precisely cut and edit DNA sequences, opening new frontiers in medicine and agriculture.

science · advanced
JA · article

気候変動きこうへんどう科学かがく

The Science of Climate Change

Greenhouse gas emissions from human activity are raising global average temperatures, disrupting weather patterns and ecosystems worldwide.

science · advanced
JA · article

人工知能じんこうちのう機械学習きかいがくしゅう原理げんり

The Principles of Artificial Intelligence and Machine Learning

Modern AI systems use deep neural networks trained on large datasets to recognize patterns and make predictions.

science · advanced
JA · article

エピジェネティクス遺伝子いでんしスイッチ

Epigenetics — Switching Genes On and Off

Epigenetics studies heritable changes in gene expression that do not involve alterations to the DNA sequence itself.

science · advanced
JA · article

素粒子そりゅうし物理学ぶつりがく標準模型ひょうじゅんもけい

Particle Physics and the Standard Model

The Standard Model describes the fundamental particles and forces of nature, confirmed by the discovery of the Higgs boson in 2012.

science · advanced