...that Charles Goodyear performed some of his experiments on rubber while in debtor's prison? He was there so often he referred to it as his "hotel". Chronically in debt because of poor business sense and ill health, Goodyear depended on the generosity of friends and family. Even after he unlocked the secret to vulcanizing rubber, he was unable to improve his financial situation. When he died, his estate was $200,000 in debt.
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| Application No. | Application Title | Issue Date |
| 20060010965 | Device for measuring the inertia tensor of a rigid body A device for measuring the inertia tensor of a rigid body at least consists of a rigid body (11), the inertia tensor of which is to be measured, at least one suspension means (20) with respect to at least one fixed point which sets at least one degree of f... | 01/19/2006 |