Friday, December 12th, 2025, Lunar October 23rd

Today's Energy Guide

Today's hexagram:Thunder without illusion（䷘）

The Book of ChangesNo.twenty-fiveThe hexagram states that the heavens move upwards and the earth shakes downwards, and thunder strikes throughout the world. It is true and without falsehood.

Hexagram revelation:The original meaning of 'no falsehood' is truth without falsehood, without any improper thoughts. In Shuowen, 'falsehood' means' chaos'. Qian Tian is established in the hexagramHeaven's WayThe law awakens delusions and delusions under the thunder，Not only displaying authority and strictness, but also not violating the timeline, acting in accordance with the right path, without false intentions, and not doing anything beyond the norm.It implies that all phenomena occur according to natural laws, without any falsehood or artificial manipulation. Thunder travels through the world, not for the preservation of Yao, not for the downfall of Jie; Fortune and misfortune belong to nature, and being fixated on the outcome itself is“delusion”.Wujian GuaThe advocated“Do not act recklessly or falsely”Always the core cornerstone for personal safety and social order.

The doer loses, the doer loses.

It is because of the sage's inaction that there is no defeat, and without persistence, there is no loss.

——The Tao Te Ching

today in historyat work

Henrietta·Leavitt one thousand nine hundred and twenty-one

yeartwelvemoonOn the day,moonAmerican female astronomerpass away·Leavitt one thousand nine hundred and twenty-oneAn outstanding female astronomer from the United States, graduated from Radcliffe College and worked at the Harvard Observatory throughout her life. Due to the limited research status of women at that time, she took on long-term responsibilitiesThe work of a "calculator" has made a milestone contribution in stellar observation.After passing away from cancer in the yearyearfive thousand three hundred and eighty-threeThe asteroid and lunar crater are named after her.She was in

one thousand eight hundred and ninety-threeJoined the Harvard Observatory in [year] and became a member of the "Harvard Calculator" team, focusing on researchCepheid variable starone thousand nine hundred and twelve.In [year], she discovered that the brightness of Cepheid variable stars is directly proportional to the period of light variation, and this "perihelion relationship" is known as Leibniz's law, providing a key method for measuring cosmic distance and hailed as the cornerstone of modern cosmologyThis discovery directly prompted Hubble to prove the existence of extragalactic systems, laying the foundation for modern cosmology and fundamentally changing human understanding of the scale of the universe. Although not fully recognized during her lifetime, her research is recognized as.

twentyOne of the most important breakthroughs in astronomy of the century not only paved the way for subsequent research on cosmic expansion and galaxy evolution, but also broke the shackles of gender bias on scientific research, becoming a model for female scientists to uphold truth and explore the unknown.世纪天文学最重要突破之一，不仅为后续宇宙膨胀、星系演化等研究铺平道路，更打破了性别偏见对科研的桎梏，成为女性科学家坚守真理、探索未知的典范。