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ProteusH

@proteus-h

Physics/Engineering Student. I post about physics, radiation, space, my projects, and more.

485 followers 16 following 396 posts Reputation 61.64

ProteusH
@proteus-h Apr 9, 2019, 5:30 AM UTC

Carrizo Plain, California

I visited Carrizo Plain National Monument, a remote valley in California, this past weekend to see the current wildflower show. Unlike last month when I was there, there are now flowers covering the…

15 upvotes 4 replies $0.01
ProteusH
@proteus-h Apr 8, 2019, 4:01 AM UTC

Cheap FM Radio Transmitter: Teardown

Hello all - it's been awhile since I last posted. Let's get to it. Sitting on my desk for the past month is a small battery powered FM transmitter sold by Straight Talk, the cell phone carrier. The d…

28 upvotes 0 replies $0.01
ProteusH
@proteus-h Aug 31, 2018, 1:56 AM UTC

Hazard Reef, central California

-- - - - ---- - - -- ----- - - -- - - -- --- - - -- - ###### Steepshot IPFS IOS Android Web

8 upvotes 1 replies $0.03
ProteusH
@proteus-h Aug 26, 2018, 12:43 AM UTC

California scrub jay at Montana de Oro, California

- -- - - --- -- - - -- - - ----- -- - - ---- - - - -- This bird was surprisingly friendly this morning and let me take this picture. In the background is the Hazard Reef formation, which stretches ab…

20 upvotes 0 replies $0.01
ProteusH
@proteus-h May 16, 2018, 1:46 AM UTC

My X-Ray emitter device built from a barbecue lighter

Recently I completed a small project - I created a little X-ray radiation source using a barbecue lighter and a vacuum tube. When you pull the trigger, a short pulse of X-rays is produced inside the…

225 upvotes 6 replies $10.15
ProteusH
@proteus-h May 12, 2018, 5:05 AM UTC

Harmony Headlands, California, from above

I finally licensed my drone so I can use the photos for "commercial" (Steemit) purposes now. Here's a shot of Harmony Headlands, a state park north of Cayucos, from last week. It's the tail end of sp…

7 upvotes 1 replies $0.00
ProteusH
@proteus-h May 12, 2018, 3:07 AM UTC

NASA's Insight Mars Lander Mission

Early this morning, the Insight mission launched aboard an Atlas 5 rocket on a trajectory to the planet Mars. This large machine, weighing almost a ton at takeoff, will touch down on the red planet a…

189 upvotes 4 replies $7.20
ProteusH
@proteus-h Apr 29, 2018, 6:20 AM UTC

Inside an inexpensive E-reader device

About a month ago I discovered that my e-reader (which I use to store textbooks and a few other books that I occasionally read) had been smashed. It had been in my backpack for a week or two without…

74 upvotes 6 replies $12.89
ProteusH
@proteus-h Apr 26, 2018, 5:51 AM UTC

What is an orbit? Part 3: Orbital Transfers

In this writeup I'm going to discuss how a spacecraft can go from one orbit to another, and hopefully make it as intuitive as possible. Transferring between two orbital trajectories is done by almost…

219 upvotes 11 replies $13.99
ProteusH
@proteus-h Apr 24, 2018, 2:02 AM UTC

What is an orbit? Part 2: Common types of orbits

Today I'd like to briefly discuss various common types of orbital trajectories that many satellites above your head use to complete their missions. Since a given orbit defines the location and veloci…

126 upvotes 3 replies $15.22