IndrekR

Considering the ISS orbits in ~90 minutes, the 15 minute TTL is quite a long time.

Not only from 0W, but from negative capacity (max charging power) to positive capacity (max discharging power).

Have mailed live queen bees in Europe as well. Funniest was when receiving some (I think it was from Denmark to Estonia before we joined the EU) and one delivery got stuck in customs due to unpaid alcohol tax — someone had misread “Live Bees” as “Live Beer”. Fortunately this was cleared out within two days and bees were still alive (but a little short on food).

> If you get sets designed in China and made at the same factories that make Lego bricks, they're like 1/3 the cost.

Lego does not outsource brick making. They tried it out back in 2005 with Flextronics in Hungary and got a painful lesson. Lego runs all their factories themselves now.

That is why Therac-25 was mentioned, I guess. Software kills: https://en.wikipedia.org/wiki/Therac-25

Bit more info about the startup behind it: https://www.gscan.eu/

From PCB perspective, LPDDR5(X) interface is quite different from regular DDR5. Same with DDR4 and LPDDR4. Source: have designed few boards with different memory interfaces.

It is funny how “the race is on” when we have ASML/ZEISS monopoly in this sector.

Population control. Mostly hunting and demolishing dams. Beavers went extinct where I live in 1841. Reintroduction started in 1957. By now there is a very healthy population that stabilised around year 2000.

Almost 100% of the electricity you use indoors will be converted to heat (with few exceptions like charging batteries) that needs to be removed from the room to be able to live there. 150kW is a lot of power.

Interesting. That is like 52 sqm per unit, which is 2.9 kW/sqm — three times higher power density than the solar irradiance on earth surface. If this is used at full power, how are the rooms cooled? (most energy gets converted to heat in typical use-cases)

Sure there are reasonable limits. Where, is another matter. For example, I can not imagine a reasonable use-case for 1MW power-line per single apartment.

Not just high end and insurance. In EU 100% of new cars have GPS installed. This is used for intelligent speed assist and eCall that are now mandatory.

Rockwool is much better thermal insulator in vacuum as well…

I have seen it before. This is the “Coffee is for closers” scene from Glengarry Glen Ross: https://youtu.be/elrnAl6ygeM

* Larry Sanger, https://en.wikipedia.org/wiki/Larry_Sanger

This info is also used for time-stamping audio recordings in forensics: https://en.wikipedia.org/wiki/Electrical_network_frequency_a...

2024 average electricity price in Estonia was 0.08727 €/kWh. There was no trading with Russia during this time. This is open data. I have no idea where you get the 0.26USD figure.

Source: https://data.nordpoolgroup.com/auction/day-ahead/prices?deli...

Not the biggest fan of naming things after communists: https://en.wikipedia.org/wiki/Mikhail_Kalinin

He may be most know for being the one signing the order for Katyn massacre: https://en.wikipedia.org/wiki/Katyn_massacre

Lithuania, Latvia and Estonia (in that order) will disconnect from grids in Königsberg (Kaliningrad), Belarus and Russia (in this order). After that the area will be working as isolated grid for 33h, after which the grids will be connected to synchronization link between Lithuania and Poland. Königsberg will remain a grid-island. Summary of timeline on page 18 (in Estonian): https://elering.ee/sites/default/files/public/S%C3%BCnkronis...

Lithium tetrafluoroborate and hexafluorophosphate are quite common ingredients in lithium battery electrolytes.

It would be interesting to see chemical analysis of those particles. Most common in the environment seem to be tyre particles (by a large margin), polyesters (textiles), polystyrene and polyethylene (both from packaging and single use utensils/plates/cups). Wonder if it is a different distribution in human body.

Without A380 there would be no A350 XWB.

Mike Bannister was also one of the commentators on this live stream.

And Li-ion batteries are good enough: https://en.wikipedia.org/wiki/John_B._Goodenough

The Open University in UK (living in Estonia myself): https://www.open.ac.uk/postgraduate/qualifications/f77

The course was S818.

And Gaia also has a downlink speed of approx 3Mbps. So it will process as much as possible on board and just send down less than 20 pixels per each star imaged. That is why you can not get a direct image out of it.

It takes about 14 pictures of each star during orbit (which is quite close to Earth’s orbit around the Sun), so approximately once per month, and then compares those to calculate the star’s distance from the parallax.

For real data you can use Gaia ESA archive: https://gea.esac.esa.int/archive/

I went to study MSc in Space Science and Technology as a hobby few years ago. In one course (2022) we had an assignment to find Supernovae from recent Gaia data (Python code). Then made sure this is observable by University’s robotic telescope (and compliant with local weather forecast). Next requested the observation from the telescope and if successful, received the pictures next day. Had to analyse the results as well. It surprised me how much data there actually is available in quite open format from ESA missions.

Controlling remote telescope few thousand kilometres away was also a nice experience.