Frequently Asked Questions
No. Time Since Launch has a trigger mechanism that is irreversible. Pulling the pin physically alters the device, saving that exact moment forever. Prepare and think carefully before you pull the pin :)Last updated:
We understand the desire to backdate a TSL, but the answer is NO.
Since TSL records the current moment in time when the trigger is pulled, there is no way to backdate one, no way to stop one once it has been started, no way to slow one down or speed one up.
Time Since Launch is a device that forever marks the moment in time when the pin was physically pulled. Think of it like proof that you were physically present at that moment. We all have epochs in our past and more to come in our future.Last updated:
TSL ships with a long lasting AA battery made by Energizer. Energizer L91 Ultimate Lithium are fancy batteries, but readily available for purchase around the world. If and when your TSL is low on batteries, the display will indicate it’s time to change batteries long before they run out (about 6 months to give you ample time to notice). You can simply pull the aluminum caps out of the glass tube to expose the batteries, pull them out and insert your new batteries. Backup capacitors will keep the chips powered and the clock running while you swap in a fresh set of batteries without losing time. (more details on Energizer Ultimate Lithium in this datasheet: http://data.energizer.com/pdfs/lithiuml91l92_appman.pdf)Last updated:
The batteries are hot swappable, so as long as batteries are changed when the display indicates low batteries (every 20-40 years), TSL won't lose count.
In the unlikely event that the batteries and the backup capacitors completely drain out, your TSL will lose count and will need to be serviced.
We can revive it with a special device to reprogram the chip to the current time. It then reads the launch timestamp that was burned into the chip when the pin was pulled and displays the appropriate time again.
We will have several of these devices scattered around the world in trustworthy hands, so the longevity of your TSL isn't dependent on just us.Last updated:
The number of days vary from month to month and we have leap years, so we decided to go with days, which are consistent with hours, minutes, and seconds.Last updated:
Yes. Once you launch, you can re insert the pin and the clock will keep running. The pin serves as a little kickstand.Last updated:
There are many possible ways TSL will fail over a long duration (electronic failure, dropped into a black hole, run over by a steam roller), but it will most likely outlive you.
Electrical components are generally rated to last 25-100 years. Their failure is generally caused by environmental conditions, so we've sealed the electronics in an air tight borosilicate glass tube to shield it from moisture, dust, and sudden temperature changes.
We don't know for certain how long TSLs will go for, but we're aiming for 1000 years.Last updated:
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