Heinrich Heinz
@hkh621.bsky.social
Geotechnical Practitioner interested in the Earth Sciences, Geohazards, History and Heritage, and Underground Construction. Recreational cyclist 🚴♀️
🧵 thank you for posting @historyofgeology.bsky.social
February 12, 1809, birthday of naturalist/geologist Charles Darwin.
From an early age, Darwin collected minerals even if he laments
"I continued collecting minerals with much zeal, but quite unscientifically--all that I cared about was a new-named mineral, and I hardly attempted to classify them."
From an early age, Darwin collected minerals even if he laments
"I continued collecting minerals with much zeal, but quite unscientifically--all that I cared about was a new-named mineral, and I hardly attempted to classify them."
February 12, 2026 at 2:39 PM
🧵 thank you for posting @historyofgeology.bsky.social
Reposted by Heinrich Heinz
5 February, 1663. One of the largest earthquakes in eastern Canada (M7+) struck Charlevoix, #Québec. This damaging #earthquake triggered vast landslides and was felt across eastern North America
www.earthquakescanada.nrcan.gc.ca/historic-his...
more on Charlevoix:
csegrecorder.com/articles/vie...
⚒️🧪
www.earthquakescanada.nrcan.gc.ca/historic-his...
more on Charlevoix:
csegrecorder.com/articles/vie...
⚒️🧪
February 5, 2026 at 3:20 PM
5 February, 1663. One of the largest earthquakes in eastern Canada (M7+) struck Charlevoix, #Québec. This damaging #earthquake triggered vast landslides and was felt across eastern North America
www.earthquakescanada.nrcan.gc.ca/historic-his...
more on Charlevoix:
csegrecorder.com/articles/vie...
⚒️🧪
www.earthquakescanada.nrcan.gc.ca/historic-his...
more on Charlevoix:
csegrecorder.com/articles/vie...
⚒️🧪
I remember
When the engineers say, "It's not safe. Something bad will happen," it's always best to listen and err on the side of caution.
'It's going to be catastrophic': The inside story of the Challenger disaster
Forty years ago, the Challenger space shuttle disintegrated just after lift-off. A small team of engineers tried to prevent the tragedy.
www.abc.net.au
January 28, 2026 at 6:50 PM
I remember
Just another great winter day in Calgary 🇨🇦
January 25, 2026 at 1:35 AM
Just another great winter day in Calgary 🇨🇦
Reposted by Heinrich Heinz
Burgess Shale in British Columbia is one of the most important fossil sites in the world.
With fossils that date back over 500 million years, it provides the clearest record of Cambrian marine life on Earth.
This is the story of this UNESCO World Heritage Site.
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With fossils that date back over 500 million years, it provides the clearest record of Cambrian marine life on Earth.
This is the story of this UNESCO World Heritage Site.
🧵 1/8
January 20, 2026 at 3:03 PM
Burgess Shale in British Columbia is one of the most important fossil sites in the world.
With fossils that date back over 500 million years, it provides the clearest record of Cambrian marine life on Earth.
This is the story of this UNESCO World Heritage Site.
🧵 1/8
With fossils that date back over 500 million years, it provides the clearest record of Cambrian marine life on Earth.
This is the story of this UNESCO World Heritage Site.
🧵 1/8
Reposted by Heinrich Heinz
“Winter Morning in Baie-Saint-Paul”, c.1926/34 by Canadian artist Clarence Gagnon
January 13, 2026 at 2:38 PM
“Winter Morning in Baie-Saint-Paul”, c.1926/34 by Canadian artist Clarence Gagnon
Alan C. Collier (1911 - 1990) thank you @canadianpaintings.bsky.social Regards from the Bow Valley 🇨🇦
Bow River in Banff Park
Alan C. Collier
n.d.
Alan C. Collier
n.d.
December 27, 2025 at 5:05 PM
Alan C. Collier (1911 - 1990) thank you @canadianpaintings.bsky.social Regards from the Bow Valley 🇨🇦
Reposted by Heinrich Heinz
Christmas Mail Train
Maud Lewis
c. 1957
Maud Lewis
c. 1957
December 25, 2025 at 6:01 PM
Christmas Mail Train
Maud Lewis
c. 1957
Maud Lewis
c. 1957
On FB, Yukon Geological Survey posted some spectacular photos of landslides & snow avalanches triggered by the magnitude 7.0 earthquake on Dec 6 in the St Elias Mountains. Here are some of my favs. @geocron.bsky.social @theronfinley.bsky.social @davepetley.bsky.social @ksvenenvig.bsky.social 🧪⚒️
December 21, 2025 at 11:28 PM
December 17, 1903, 122 years ago, Orville and Wilbur Wright accomplished the first powered and controlled heavier-than-air flight.
Credit: EAA - The Spirit of Aviation
#Aviation #AviationHistory #WrightBrothersDay #OTD
Credit: EAA - The Spirit of Aviation
#Aviation #AviationHistory #WrightBrothersDay #OTD
December 17, 2025 at 6:19 PM
December 17, 1903, 122 years ago, Orville and Wilbur Wright accomplished the first powered and controlled heavier-than-air flight.
Credit: EAA - The Spirit of Aviation
#Aviation #AviationHistory #WrightBrothersDay #OTD
Credit: EAA - The Spirit of Aviation
#Aviation #AviationHistory #WrightBrothersDay #OTD
December 15, 1832, birthday of French civil engineer Alexandre Gustave Eiffel. He was born Alexandre Gustave Bönickhausen, on 15.December.1832. His German parents had emigrated to France and changed their name to ‘Eiffel’ – after the Eifel region in Germany.
#OTD
#OTD
December 15, 2025 at 6:32 PM
December 15, 1832, birthday of French civil engineer Alexandre Gustave Eiffel. He was born Alexandre Gustave Bönickhausen, on 15.December.1832. His German parents had emigrated to France and changed their name to ‘Eiffel’ – after the Eifel region in Germany.
#OTD
#OTD
Albert Heim was a Swiss geologist, noted for his three-volume Geologie der Schweiz (#Geology of #Switzerland). He is on Wikipedia
Thanks @historyofgeology.bsky.social
Thanks @historyofgeology.bsky.social
Heim's sketch of the Tödi - with 3.570 meters the highest peak - and adjacent mountains of the Glarner Alps ⛰️
December 12, 2025 at 7:19 PM
Albert Heim was a Swiss geologist, noted for his three-volume Geologie der Schweiz (#Geology of #Switzerland). He is on Wikipedia
Thanks @historyofgeology.bsky.social
Thanks @historyofgeology.bsky.social
The iconic Space Needle in Seattle was completed #OTD in 1961. When it opened just over a year later as the centerpiece for the 1962 World’s Fair, the 605-foot-tall observation tower was the tallest structure west of the Mississippi River.
Credit: American Society of Civil Engineers (ASCE)
Credit: American Society of Civil Engineers (ASCE)
December 9, 2025 at 4:03 PM
The iconic Space Needle in Seattle was completed #OTD in 1961. When it opened just over a year later as the centerpiece for the 1962 World’s Fair, the 605-foot-tall observation tower was the tallest structure west of the Mississippi River.
Credit: American Society of Civil Engineers (ASCE)
Credit: American Society of Civil Engineers (ASCE)
Reposted by Heinrich Heinz
December 2, 1959, constructed five years earlier, the Malpasset dam collapses - the first arch dam that had ever failed. The resulting wave floods the French town of Frejus, killing 423 people.
...
...
December 2, 2025 at 7:55 PM
December 2, 1959, constructed five years earlier, the Malpasset dam collapses - the first arch dam that had ever failed. The resulting wave floods the French town of Frejus, killing 423 people.
...
...
Reposted by Heinrich Heinz
The underlying cause of the dreadful disaster in #Indonesia may have been landslides triggered by intense rainfall, which transitioned into channelised debris flows and mudflows. This Planet Labs imagery shows an area south of Padang Pajang in Sumatra. There are many, many landslides.
December 2, 2025 at 11:24 AM
The underlying cause of the dreadful disaster in #Indonesia may have been landslides triggered by intense rainfall, which transitioned into channelised debris flows and mudflows. This Planet Labs imagery shows an area south of Padang Pajang in Sumatra. There are many, many landslides.
Reposted by Heinrich Heinz
November 27th, 1701:
Anders Celsius, a Swedish astronomer, physicist, and mathematician, was born on this day. He founded the Uppsala Astronomical Observatory in 1741 and, in 1742, proposed the Celsius temperature scale, which bears his name.
Anders Celsius, a Swedish astronomer, physicist, and mathematician, was born on this day. He founded the Uppsala Astronomical Observatory in 1741 and, in 1742, proposed the Celsius temperature scale, which bears his name.
November 28, 2025 at 4:04 AM
November 27th, 1701:
Anders Celsius, a Swedish astronomer, physicist, and mathematician, was born on this day. He founded the Uppsala Astronomical Observatory in 1741 and, in 1742, proposed the Celsius temperature scale, which bears his name.
Anders Celsius, a Swedish astronomer, physicist, and mathematician, was born on this day. He founded the Uppsala Astronomical Observatory in 1741 and, in 1742, proposed the Celsius temperature scale, which bears his name.
November 24, 1974, the first fossils of an Australopithecus afarensis specimen - nicknamed Lucy after the Beatles song that was frequently played at the excavation camp - were discovered 💎 Credit: History of Geology (David Bressan)
www.science.org/content/arti...
www.science.org/content/arti...
Was Lucy the mother of us all? Fifty years after discovery, famed skeleton has rivals
Iconic 3.2-million-year-old fossil is now part of an extended family of human ancestors
www.science.org
November 24, 2025 at 3:35 PM
November 24, 1974, the first fossils of an Australopithecus afarensis specimen - nicknamed Lucy after the Beatles song that was frequently played at the excavation camp - were discovered 💎 Credit: History of Geology (David Bressan)
www.science.org/content/arti...
www.science.org/content/arti...
Reposted by Heinrich Heinz
On Nov. 18, 1929, a 7.2 magnitude earthquake struck off the south coast of Newfoundland.
It produced an eight-metre high tsunami that swept into the coast of the island.
It killed nearly 30 people.
This is the story of the Grand Banks Earthquake.
🧵 1/8
It produced an eight-metre high tsunami that swept into the coast of the island.
It killed nearly 30 people.
This is the story of the Grand Banks Earthquake.
🧵 1/8
November 18, 2025 at 2:01 PM
On Nov. 18, 1929, a 7.2 magnitude earthquake struck off the south coast of Newfoundland.
It produced an eight-metre high tsunami that swept into the coast of the island.
It killed nearly 30 people.
This is the story of the Grand Banks Earthquake.
🧵 1/8
It produced an eight-metre high tsunami that swept into the coast of the island.
It killed nearly 30 people.
This is the story of the Grand Banks Earthquake.
🧵 1/8
Reposted by Heinrich Heinz
On Nov. 14, 1938, the Lions Gate Bridge opened in Vancouver.
The bridge only took 593 days to build, and it wouldn't have happened without the wealthy Guinness family.
A bylaw also prevented any Asian person from helping in construction of the bridge.
This is the story.
🧵 1/10
The bridge only took 593 days to build, and it wouldn't have happened without the wealthy Guinness family.
A bylaw also prevented any Asian person from helping in construction of the bridge.
This is the story.
🧵 1/10
November 14, 2025 at 2:01 PM
On Nov. 14, 1938, the Lions Gate Bridge opened in Vancouver.
The bridge only took 593 days to build, and it wouldn't have happened without the wealthy Guinness family.
A bylaw also prevented any Asian person from helping in construction of the bridge.
This is the story.
🧵 1/10
The bridge only took 593 days to build, and it wouldn't have happened without the wealthy Guinness family.
A bylaw also prevented any Asian person from helping in construction of the bridge.
This is the story.
🧵 1/10
The San Francisco-Oakland Bay Bridge was completed #OTD in 1936. It was the longest crossing over water at the time.
www.asce.org/about-civil-...
www.asce.org/about-civil-...
San Francisco-Oakland Bay Bridge
The San Francisco-Oakland Bay Bridge was the longest crossing over water and most costly bridge of its time.
www.asce.org
November 12, 2025 at 7:54 PM
The San Francisco-Oakland Bay Bridge was completed #OTD in 1936. It was the longest crossing over water at the time.
www.asce.org/about-civil-...
www.asce.org/about-civil-...
Lone Pine, Gallipoli 🌺
📷 me
📷 me
November 9, 2025 at 8:11 PM
Lone Pine, Gallipoli 🌺
📷 me
📷 me
Reposted by Heinrich Heinz
November 7th, 1940:
The Tacoma Narrows Bridge collapsed because of the physical phenomenon known as aeroelastic flutter. Before the bridge opened, high winds would cause the bridge to move vertically, giving the nickname Galloping Gertie.
The Tacoma Narrows Bridge collapsed because of the physical phenomenon known as aeroelastic flutter. Before the bridge opened, high winds would cause the bridge to move vertically, giving the nickname Galloping Gertie.
November 8, 2025 at 12:34 AM
November 7th, 1940:
The Tacoma Narrows Bridge collapsed because of the physical phenomenon known as aeroelastic flutter. Before the bridge opened, high winds would cause the bridge to move vertically, giving the nickname Galloping Gertie.
The Tacoma Narrows Bridge collapsed because of the physical phenomenon known as aeroelastic flutter. Before the bridge opened, high winds would cause the bridge to move vertically, giving the nickname Galloping Gertie.
Reposted by Heinrich Heinz
James Naismith wasn't just the inventor of basketball.
During his youth, he was one of the top athletes in Canada, an Army Chaplain during the First World War and also earned a medical degree.
This is the story of this great Canadian.
🧵 1/12
During his youth, he was one of the top athletes in Canada, an Army Chaplain during the First World War and also earned a medical degree.
This is the story of this great Canadian.
🧵 1/12
November 6, 2025 at 3:04 PM
James Naismith wasn't just the inventor of basketball.
During his youth, he was one of the top athletes in Canada, an Army Chaplain during the First World War and also earned a medical degree.
This is the story of this great Canadian.
🧵 1/12
During his youth, he was one of the top athletes in Canada, an Army Chaplain during the First World War and also earned a medical degree.
This is the story of this great Canadian.
🧵 1/12
Reposted by Heinrich Heinz
Blue Jays
Cody Houle ~ Anishinaabe
2025
Cody Houle ~ Anishinaabe
2025
October 31, 2025 at 11:01 PM
Blue Jays
Cody Houle ~ Anishinaabe
2025
Cody Houle ~ Anishinaabe
2025
Yay Blue Jays 🇨🇦 ⚾️
TORONTO BLUE JAYS FOR THE WIN
The Toronto Blue Jays take two of three from the defending World Series champions in their home stadium. It’s a dominant 6-1 Game 5 victory.
The Jays are coming home to Canada 🇨🇦 with the chance to win the World Series on Friday. Buckle up folks.
The Toronto Blue Jays take two of three from the defending World Series champions in their home stadium. It’s a dominant 6-1 Game 5 victory.
The Jays are coming home to Canada 🇨🇦 with the chance to win the World Series on Friday. Buckle up folks.
October 30, 2025 at 3:28 AM
Yay Blue Jays 🇨🇦 ⚾️