Atomic Clock
-Eryl Paez
A bag valve mask is used to manually breathe for the patient on a temporary basis.
Watch
This depends on what you are using the batteries for. If you are using a device that is used on a regular basis, rechargeable batteries are the best choice. If it is a device that is rarely used, regular batteries would be the best choice.
Airbag
The clock has been used to tell time on ships for centuries.
Devisce used to keep track of solar time
No, it's really a memory device. It can be used to store data for a long time.
Time can be used to measure mechanical advantage by comparing the time taken to perform a task with and without a mechanical advantage device. If a mechanical advantage device reduces the time required to complete a task, it indicates that the device has increased the efficiency of the task, thereby providing mechanical advantage.
The DinnerTime app is a parental control app where you can pause the device from being used for any period of time. The app is installed on the parent's device, and also on the child's device. Once linked, you can control the child's device.
marine chronometer.
air bag
Sandglass or ampoletta