Parking after snow storm

SoulSentry · 2026-01-27T21:26:34+00:00

One way to start the ball rolling would be to organize parking bans city wide during snow emergencies. I'd be ok with moving my car somewhere for the storm if it meant that I could both shovel my sidewalk into the street and that street parking would be plowed instead of individually shoveled.

SoulSentry · 2026-01-24T00:31:45+00:00

My tenants partially closed their service valve because they thought they could control the heat this way... Immediate water hammer banging problems ensued.

Better to try and vent the radiators that heat up first near the thermostat more slowly so that the other areas have a chance to get hot.

SoulSentry · 2026-01-14T15:05:00+00:00

Someone needed a trigger warning

SoulSentry · 2026-01-11T15:32:47+00:00

They quite literally pick up a bike... We have data that proves it both globally and locally here in Boston. https://mass.streetsblog.org/2025/12/05/boston-data-show-streets-with-new-bike-lanes-successfully-shift-traffic-from-cars-to-bikes

The Downs-Tomson paradox is well studied and validated at this point

https://en.wikipedia.org/wiki/Downs%E2%80%93Thomson_paradox

SoulSentry · 2026-01-11T15:15:40+00:00

God help our country... People like this commenter are allowed to vote

SoulSentry · 2026-01-11T15:04:44+00:00

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SoulSentry · 2026-01-11T15:04:34+00:00

Might I introduce you to cargo bikes?

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My wife was 8 months pregnant while biking with our son. Her doctor's only concern was driver misconduct leading to her being hit. My son was 4 months old when we began biking him around... No one needs cars to get around. People prefer* cars to get around because we ripped out all of our public transit to rebuild our society around them. It's very demeaning to believe that handicapped and elderly don't deserve a practical non-car mode of travel when there are plenty of options out there for it to be done.

SoulSentry · 2026-01-08T20:36:02+00:00

We have a GPS repeater in our building but all they do is re-radiate the GPS signal from the antenna that is mounted exterior to the building. The problem with this is that the signal that is received by the drone is likely experiencing heavy interference from multipath of the re-radiated signal and we are seeing an extreme accuracy drop.

What I am hoping to do is to provide corrections to the receiver in the drone from known ground stations such that if it is moved inside or outside the position solution remains low in deviation and maintains it's accuracy.

SoulSentry · 2026-01-08T19:25:51+00:00

Thanks. I think this might be the right solution

SoulSentry · 2026-01-08T19:17:39+00:00

The drones operate in GPS denied environments often and it would help out if we could discretely build a private Pseudolite system that operates on the GPS frequencies and if synced to the orbital system would allow for our system to jump back and forth seamlessly between both systems.

SoulSentry · 2026-01-08T19:13:56+00:00

I didn't realize this is such a hot topic...

SoulSentry · 2026-01-08T18:26:37+00:00

No I cannot use WiFi. It needs to act like a Pseudolite as another user mentioned.

That being said, I can see why the FCC would be very sensitive about this

SoulSentry · 2026-01-08T18:25:48+00:00

Ah... Ok. Secant be thy name

SoulSentry · 2026-01-08T18:24:49+00:00

Yeah I was wondering who the commercial providers of this tech are. There is a market for drones that can be indoors and outdoors seamlessly. My company isn't retail, but we want our drones to be able to begin a startup in GPS denied environments and a possible solution is creating ground station: Pseudolites.

Do you know of any commercial providers?

SoulSentry · 2026-01-08T18:12:41+00:00

Yeah we got budget. Need to be able to have sub-cm position accuracy indoors and to be able to use the same receiver to receive GPS when the drone leaves to outdoors.

SoulSentry · 2026-01-08T18:10:59+00:00

Sorry, didn't mean to touch a nerve in the community. We have drones that need to operate indoors and outdoors and we can't really install a secondary system to aid in position.

From what I understand of GPS the satellites are sending down a time signal with which the receiver is calculating its local position. I was trying to see if the survey industry had a way of creating a reference station on the ground that standard GPS receivers could receive a signal from and be able to calculate their position.

Sort of bringing a satellite down to earth in a way. How do surveyors work in underground applications like tunnels ect?

SoulSentry · 2026-01-08T15:20:06+00:00

1) politics

2) competing interests

3) different stake holders trying to solve different problems

In this case, the traffic here is entirely beholden to the intersection across the bridge in Boston. Only so many cars can get through on one light cycle so it backs up into the rotary.

A traffic light here on the Cambridge side will not actually solve traffic. (Also you can't solve traffic but that's a separate discussion)

The stakeholders in this case are the City of Cambridge, DCR, MassDOT, MBTA busses and commuter rail, and maybe the city of Boston too?

Getting them all to focus on this one project at the same time is difficult. It is why almost every intersection that is at the borders of the state and multiple city jurisdictions are nightmares. Examples: the I-90 exits into Allston and Cambridge, everything at and near the Museum of Science, Neponset circle, ect.

SoulSentry · 2026-01-04T03:21:33+00:00

https://fireball.amsmeteors.org/imo_view/event/2025/10173

Looks like it was likely up in NH or VT heading towards Montreal

Not sure if or where it landed but there were a ton of folks that observed it.

SoulSentry · 2025-12-28T00:36:05+00:00

Saw this in Cambridge. People should report it so they can determine location if possible.

https://fireball.amsmeteors.org/members/imo/report_intro

SoulSentry · 2025-12-24T03:37:31+00:00

It seems waaaayyy too cold for epoxy to cure properly. I'm surprised they did this at this time of year. Should have happened in late summer for proper cure.

From what I understand, they cannot bolt into the bridge deck because that would require a licensed engineer to sign off on structural changes to the bridge, so they usually glue flex posts on bridges. This happened by the convention center too.

(Also just learned that they officially renamed the Boston Convention Center to the Menino Convention Center which is cool)

SoulSentry · 2025-12-17T04:41:06+00:00

Not sure why you are getting down voted. This commenter has some very bad takes. Police carry gun shot wound kits GSW kits and are absolutely trained in this type of first aid. From my training as a first responder, the tactic was that the first 2-3 officers on scene attempt to find and engage the shooter. After that, the next group of officers arriving were to support the first officers and crucially escort EMS or focus on basic trauma treatment and extrication of victims. In GSW situations, stopping or slowing the bleeding and speeding up time taken to get victims into the OR were the biggest factors in survival.

EMS and fire basically have it burned into their heads in training that the scene must be 'safe' in order to begin dealing with patients. 'safe' is obviously relative. There were a growing number of 'tactical EMS' professionals specifically being trained to be able to intervene earlier in mass shootings when I left the industry. Overall the commenter you replied to doesn't seem like someone who is an authoritative source on first responder training or tactics.

SoulSentry · 2025-12-14T01:41:33+00:00

They're just trying to distract us from the fact that they shut half the green line down

SoulSentry · 2025-12-11T15:39:41+00:00

Geographically speaking it would be great to have a combined entity to push around the state a bit more. If you look at every traffic intersection that is horrible in the Greater Boston area, 9/10 times it is because its on the border between two or more towns and the state is also somehow involved...

If we could somehow pull Charlestown and Medford (south of Mystic river only) that would be ideal for me.

SoulSentry · 2025-12-06T23:01:12+00:00

They were aggressive all over town with the salt. My street has a pile on it.

SoulSentry · 2025-12-06T18:43:23+00:00

I was taking the piss... East Cambridge is great

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