// Disciplines
Environmental Science
6 topics
- Mineral and Stone Hobby
Emotions Toward Stones That Emit Light from Within
Stones that 'emit light from within' refer to fluorescent or phosphorescent minerals that absorb ultraviolet or visible light and emit light…
- DIY Culture
On Living Surrounded by Ready-Made Products
Modern people live almost entirely dependent on ready-made products for clothing, food and shelter. This question quietly illuminates what s…
- Mineral and Stone Hobby
On How Stones of the Same Type Have Different Expressions
This question reexamines the phenomenon that even stones of the same type (e.g., same quartz, same agate) never have the same expression. Su…
- Mineral and Stone Hobby
Which Do You Prefer: Perfect Crystals or Imperfect Ones?
Perfect crystals embody mathematical order and symmetry, reflecting human ideals. On the other hand, imperfect crystals contain nature's con…
- Mineral and Stone Hobby
On the Regret and Joy After Purchasing Stones
The 'regret and joy after purchasing stones' refers to the complex emotion where, after acquiring a stone through impulse or careful conside…
- Mineral and Stone Hobby
Can One Feel the Time It Took for a Stone to Form?
It often takes an immense amount of time — millions or hundreds of millions of years — for a stone to form. This question reexamines whether…