He also would have been able to get picture, audio, or video footage of the things he seened or learned while he was trying to discover america. The cell phone would have also came in very handy after he got all the evidence of what he found, he would have been able to send all of his pictures, videos, and audios back to spain without waiting to get back to spain to show them. The phone would have also been useful when he was sick and dying because he would have been able to call a doctor to come to his …show more content…
A celestial navigation was a tool that fixes positions that enables a navigator to transition through space without having to rely on estimated calculations to know their position. A quadrant is a tool that is used to measure angles up to 90 degrees. A sandglass was a tool that is a mechanical device used to measure the passage of time. It comprises two glass bulbs connected vertically by a narrow neck that allows a regulated trickle of material from the upper bulb to the lower bulb. A nocturnal is a tool used to used to determine the local time based on the relative positions of two or more stars. It was also useful to help navigate through the dark. A lunar calendar is a tool used to trick the native on san salvador into giving columbus food and shelter. They believed that he could make the moon disappear forever and cause doom and destruction. Most of these tools were very useful in his time and it at least helped him find one new world, even though it was not