Sermon Illustrations
Diamond May Be Dethroned as Hardest Material
Diamonds are the hardest substance on Earth, they rate a perfect 10 on the Mohs scale of mineral hardness. But on other carbon-rich planets, the jury is still out. That’s because for some 40 years, scientists have theorized that diamond can squeeze into an even harder mineral known as an eight-atom body-centered cubic, or BC8. If true, this ultra-dense form of carbon would likely be found on carbon-rich exoplanets and would have both a higher compressive strength and thermal conductivity than diamond.
As a result of their exceptional toughness and resistance to wear, diamonds have found a wide range of services in various fields and daily life. Saw blades and drill bits with diamond tips may easily slice through stone, concrete, and metal. Diamonds are also essential in the electrical industry because of their resilience and resistance to heat and chemicals. Another use for diamonds is their high electrical insulation which makes it a promising material for improving the reliability of semiconductors. And let’s not forget the romantic side of diamonds. Because of their extreme hardness and brilliance diamonds are prized as jewelry which can last forever.
Simply put, the discovery of a way to make this “super-hard diamond” could be a game changer for a variety of industries. And scientists from Lawrence Livermore National Laboratory and the University of South Florida using the Frontier supercomputer are researching just such a possible pathway toward creating BC8.
Possible Preaching Angle:
While a diamond is remarkable for its incredible hardness, there is something on earth that is even harder – the human heart. The Bible warns that a hardened heart is a serious spiritual condition that can develop through unrepentant sin, pride, ingratitude, or disappointment. Only God can truly soften a hardened heart, which requires recognizing the problem, repenting of sin, and submitting to God's work in one's life.