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Ie, if I want to message a friend or a family member and it's more convenient to message them via a third party inbox. All the incubators I know (YC, tech stars) etc insist that you have a co-founder with whom you have experience working together with or organically know each other.
At some level this makes sense given the roller coaster ride of startups. Just ask Solucija about an issue you face and immediately get a list of ready solutions, answers and tips from other Internet users.
The method compares the abundance of a naturally occurring radioactive isotope within the material to the abundance of its decay products, which form at a known constant rate of decay.
The probability of a parent atom decaying in a fixed period of time is always the same for all atoms of that type regardless of temperature, pressure, or chemical conditions. The time required for one-half of any original number of parent atoms to decay is the half-life, which is related to the decay constant by a simple mathematical formula.
Radioactive dating uses the decay rates of radioactive substances to measure absolute ages of rocks, minerals and carbon-based substances, according to How Stuff Works.
Scientists know how quickly radioactive isotopes decay into other elements over thousands, millions and even billions of years.
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Are there examples of third party sites that have inboxes that do not control the relationship.