diff --git a/Library/tips.json b/Library/tips.json
index 192575f2b8a63e821ce0f0df20fb0ad8d47a6ce1..c926022b41f2f2398c8595df8cc7fc5a826d74a1 100644
--- a/Library/tips.json
+++ b/Library/tips.json
@@ -1,6 +1,8 @@
 {"tips":[
 "The cycles of the co-tree of a dual minimum spanning tree of a watertight triangle mesh cut that mesh into a topological disk.",
 "Transition functions between charts of an integer grid map always contain a translation by an integral offset.",
+"There are only five Platonic solids: Tetrahedron, hexahedron, octahedron, dodecahedron, icosahedron",
+"The diameter of a circle always subtends a right angle to any point of the circle.",
 "Filling a non-regular hole of valence <i>n</i> in a cubic manifold B-spline with <i>n</i> bicubic Bezier patches with <i>G<sup>1</sup></i> continuity is impossible in general if <i>n</i> is even.",
 "A closed, regular quad mesh is a topological torus."
 ]}