A Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, is presented at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

A Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, is presented at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

Gudrun Jackson, daughter of cryptologist and inventor Fritz Menzer, poses during a presentation of a Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

A Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, is presented at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

A Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, is presented at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

A Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, is presented at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

Gudrun Jackson, daughter of cryptologist and inventor Fritz Menzer, poses during a presentation of a Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

A Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, is presented at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

Gudrun Jackson, daughter of cryptologist and inventor Fritz Menzer, poses during a presentation of a Schluesselgeraet 41, also known as SG-41 Model Z or the 'Hitler mill', a rotor cipher machine first produced in Nazi Germany in 1941 and designed as a potential successor for the Enigma machine, at the Deutsches Museum in Munich, Germany, November 8, 2022. REUTERS/Lukas Barth 

People gather around a rice milling machine beside the Wuruku rice mill market after a flood displaced millers from the market in Makurdi, Nigeria, October 1, 2022. REUTERS/Afolabi Sotunde 

Rice grains come out of a rice milling machine beside Wuruku rice mill market after a flood displaced millers from the market in Makurdi, Nigeria, October 1, 2022. REUTERS/Afolabi Sotunde 

A woman pours paddy rice inside a rice milling machine besides Wuruku rice mill market after a flood displaced millers from the market in Makurdi, Nigeria October 1, 2022. REUTERS/Afolabi Sotunde 

Paddy rice grains come out of a rice milling machine beside Wuruku rice mill market after a flood displaced millers from the market in Makurdi, Nigeria, October 1, 2022. REUTERS/Afolabi Sotunde 

EContra One-Step emergency contraception is displayed inside a fortified vending machine outside of Planned Parenthood, in Pullman, Washington, U.S., June, 8 2022. Picture taken June, 8 2022. REUTERS/Matt Mills McKnight 

A man works on a machine filling wheat flour into sacks at a mill in Beirut, Lebanon, March 1, 2022. Picture taken March 1, 2022. REUTERS/Mohamed Azakir 

A worker operates a machine at an oil mill in Kalamata, Greece, November 13, 2021. Picture taken November 13, 2021. REUTERS/Alkis Konstantinidis 

A worker operates a CNC milling machine inside the Naylor Industries Wombwell site in Wombwell, Britain, April 27, 2021. Picture taken April 27. REUTERS/Phil Noble 

The die of a commemorative ten euro coin for the 200 years since the Greek War of Independence, depicting former Greek prime minister Eleftherios Venizelos, is cut by a milling machine at the National Mint in Athens, Greece, March 19, 2021. Picture taken March 19, 2021. REUTERS/Alkis Konstantinidis 

A man puts olives in a machine at an olive mill, as the Croatian region of Istria is named the best region for extra virgin olive oil in the world sixth year in row by the Flos Olei guide, in Bale, Croatia, October 20, 2020. Picture taken October 20, 2020. REUTERS/Antonio Bronic 

A yarn spool is seen close to a weaving machine at Botto Giuseppe & Figli wool mill in Valdilana, near Biella, northern Italy, October 8, 2020. Picture taken October 8, 2020. REUTERS/Flavio Lo Scalzo 

A flour milling machine is seen inside the family run Shipton Mill, as a rare boon from the novel coronavirus disease (COVID-19) outbreak sees soaring demand for their organic flour from a new generation of locked-down home bakers, in Tetbury, Britain May 5, 2020. Picture taken May 5, 2020. REUTERS/Dylan Martinez 

A flour milling machine is seen inside the family run Shipton Mill, as a rare boon from the novel coronavirus disease (COVID-19) outbreak sees soaring demand for their organic flour from a new generation of locked-down home bakers, in Tetbury, Britain May 5, 2020. Picture taken May 5, 2020. REUTERS/Dylan Martinez 

A girl is seen covered with rice husk waste pumped out from a grinding machine at Wurukum Rice Mill in Makurdi, Nigeria December 2, 2019. Picture taken December 2, 2019. REUTERS/Afolabi Sotunde 

Paddy rice grains are seen in the machine before processing at Wurukum Rice Mill in Makurdi , Nigeria December 2, 2019. Picture taken December 2, 2019. REUTERS/Afolabi Sotunde 

A man pours rice into a processing machine at Wurukum Rice Mill in Makurdi, Nigeria December 2, 2019. Picture taken December 2, 2019. REUTERS/Afolabi Sotunde 

A camel pulls a seed-crushing machine used to extract sesame oil at an old olive oil mill in Sanaa, Yemen, December 20, 2019. REUTERS/ Mohamed Al-Sayaghi 

A machine turns bins of cleaned cotton into rolls of yarn at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

A machine that spins yarn from multiple rolls into one large seven-mile long roll is seen at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

A machine turns bins of cleaned cotton into rolls of yarn at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

A conveyer-belt style machine carries card slivers of cleaned, undyed cotton at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

An employee works on a machine that turns cotton into yarn at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

A machine that spins yarn from multiple rolls into one large seven-mile long roll is seen at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

A machine turns bins of cleaned cotton into rolls of yarn at Mountain View Mills, a privately owned company that produces denim at four sites across the South, in Trion, Georgia, U.S. December 3, 2019. Picture taken December 3, 2019. REUTERS/Elijah Nouvelage 

Britain's Prime Minister Boris Johnson uses a sewing machine as he visits John Smedley Mill in Matlock, Derbyshire, Britain December 5, 2019. REUTERS/Hannah McKay/Pool 

Britain's Prime Minister Boris Johnson uses a sewing machine as he visits John Smedley Mill in Matlock, Derbyshire, Britain December 5, 2019. REUTERS/Hannah McKay/Pool 

Britain's Prime Minister Boris Johnson uses a sewing machine as he visits John Smedley Mill in Matlock, Derbyshire, Britain December 5, 2019. REUTERS/Hannah McKay/Pool 

Britain's Prime Minister Boris Johnson uses a sewing machine as he visits John Smedley Mill in Matlock, Derbyshire, Britain December 5, 2019. REUTERS/Hannah McKay/Pool 

Britain's Prime Minister Boris Johnson uses a sewing machine as he visits John Smedley Mill in Matlock, Derbyshire, Britain December 5, 2019. REUTERS/Hannah McKay/Pool TPX IMAGES OF THE DAY 

Britain's Prime Minister Boris Johnson uses a sewing machine as he visits John Smedley Mill in Matlock, Derbyshire, Britain December 5, 2019. REUTERS/Hannah McKay/Pool 

An engineer monitors a milling machine at Swiftool Precision Engineering Ltd's facility near Mansfield, Britain, October 30, 2019. Picture taken October 30, 2019. REUTERS/Phil Noble 

A man works on a solar powered milling machine in Sikpe Afidegnon village, Togo May 16, 2019. Picture taken May 16, 2019. REUTERS/Noel Kokou Tadegnon 

A harvest machine works in a field at the Sao Martinho sugar mill in Pradopolis, Brazil September 13, 2018. REUTERS/Paulo Whitaker 

A worker operates a milling machine in the factory of precision engineering company Produmax in Shipley, Britain May 8, 2018. Picture taken May 8, 2018. REUTERS/Phil Noble 

A worker examines an aluminium component as he stands in front of a milling machine inside the factory of precision engineering company Produmax in Shipley, Britain May 8, 2018. Picture taken May 8, 2018. REUTERS/Phil Noble 

A worker examines an Aluminium component as he stands in front of a milling machine inside the factory of precision engineering company Produmax in Shipley, Britain May 8, 2018. Picture taken May 8, 2018. REUTERS/Phil Noble 

A sesame milling machine is seen at a sesame factory in Dohuk, Iraq March 10, 2018. Picture taken March 10, 2018. REUTERS/Ari Jalal 

Workers put sesame in a milling machine to clean crust, at a sesame factory in Dohuk, Iraq March 10, 2018. Picture taken March 10, 2018. REUTERS/Ari Jalal 

U.S. President Donald Trump welcomes 11-year-old Frank Giaccio as he cuts the Rose Garden grass at the White House in Washington, U.S., September 15, 2017. Carlos Barria: "Working in Washington, covering politics, I struggle with the rigid and tightly controlled images we're asked to take. But once in a while I get to witness a natural, unscripted moment. One morning, we were told the White House Pool would gather by the door of the Rose Garden for a photo opportunity. It was unscheduled so I didn't know what to expect. As it happened, the President was planning to surprise 11-year-old Frank Giaccio, who had written a letter to Trump offering to mow the White House lawn. Giaccio had been invited to work for a day at the White House alongside National Park Service staff. As we waited for Trump, I saw that Giaccio was very focused on this job and not paying much attention to the group of journalists, photographers and cameramen milling around the garden. Suddenly, from the other side of a hedge, wearing his signature, long red tie, President Trump appeared, dropping in as if this were an episode of The Apprentice. He walked towards Giaccio to say hi and pose for a picture. He began shouting to the boy above the noise of the lawnmower, but it was too loud. Giaccio was so focused on his job that he didn't notice Trump. He walked right past, pushing the machine. Trump paused for a second and walked to the end of the lawn to talk to Giaccio, but again, he didn't stop mowing. He kept going until his father rushed onto the scene to grab his attention, and he finally stopped to greet Trump. The image of Trump shouting at a kid who is mowing his lawn might have many interpretations in today's politically polarized United States. But for me it was just a kid who loved what he was doing, to the point he almost appeared to ignore the President." REUTERS/Carlos Barria/File photo SEARCH "POY STORY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2017 PACKAGES. 

U.S. President Donald Trump welcomes 11-year-old Frank Giaccio as he cuts the Rose Garden grass at the White House in Washington, U.S., September 15, 2017. Carlos Barria: "Working in Washington, covering politics, I struggle with the rigid and tightly controlled images we're asked to take. But once in a while I get to witness a natural, unscripted moment. One morning, we were told the White House Pool would gather by the door of the Rose Garden for a photo opportunity. It was unscheduled so I didn't know what to expect. As it happened, the President was planning to surprise 11-year-old Frank Giaccio, who had written a letter to Trump offering to mow the White House lawn. Giaccio had been invited to work for a day at the White House alongside National Park Service staff. As we waited for Trump, I saw that Giaccio was very focused on this job and not paying much attention to the group of journalists, photographers and cameramen milling around the garden. Suddenly, from the other side of a hedge, wearing his signature, long red tie, President Trump appeared, dropping in as if this were an episode of The Apprentice. He walked towards Giaccio to say hi and pose for a picture. He began shouting to the boy above the noise of the lawnmower, but it was too loud. Giaccio was so focused on his job that he didn't notice Trump. He walked right past, pushing the machine. Trump paused for a second and walked to the end of the lawn to talk to Giaccio, but again, the boy didn't stop mowing. He kept going until his father rushed onto the scene to grab his attention, and he finally stopped to greet Trump. The image of Trump shouting at a kid who is mowing his lawn might have many interpretations in today's politically polarized United States. But for me it was just a kid who loved what he was doing, to the point he almost appeared to ignore the President." REUTERS/Carlos Barria/File photo SEARCH "POY TRUMP" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2017 PACKAGES 

Bobbins of yarn are positioned onto a warping machine at the Reda wool mill factory in Valle Mosso near Biella, northern Italy, December 1, 2016. Picture taken December 1, 2016. REUTERS/Giulia Segreti 

A worker positions bobbins of yarn onto a machine at the Reda wool mill factory in Valle Mosso near Biella, northern Italy, December 1, 2016. Picture taken December 1, 2016. REUTERS/Giulia Segreti 

An employee checks the temperature inside the ladle furnace at the continuous casting machine at the NLMK Kaluga steel mill in Vorsino outside Kaluga, Russia, July 21, 2016. REUTERS/Maxim Shemetov 

An employee checks the temperature of iron at the continuous casting machine at the NLMK Kaluga steel mill in Vorsino outside Kaluga, Russia, July 21, 2016. REUTERS/Maxim Shemetov 

Workers operate a machine at the Dangote flour mill in Apapa district in Nigeria's commercial capital of Lagos November 13, 2010. To match Insight NIGERIA-FOREX/DANGOTE REUTERS/Akintunde Akinleye/File Photo

A woman working at the Kim Jong Suk Pyongyang textile mill fixes a machine during a government organised visit for foreign reporters in Pyongyang, North Korea May 9, 2016. REUTERS/Damir Sagolj TPX IMAGES OF THE DAY

A woman working at the Kim Jong Suk Pyongyang textile mill fixes a machine during a government organised visit for foreign reporters in Pyongyang, North Korea May 9, 2016. REUTERS/Damir Sagolj 

Ugo Dumont, a volunteer for the Genworth R70i Aging Experience, walks on a tread mill during a demonstration at the Liberty Science Center in Jersey City, New Jersey, April 5, 2016. REUTERS/Shannon Stapleton 

A man walks past machines at the hot strip mill department of the Pakistan Steel Mills (PSM) on the outskirts of Karachi, Pakistan February 8, 2016. To match Insight story PAKISTAN-STEEL/PRIVATISATION REUTERS/Akhtar Soomro

A universal machine made in the USSR stands in open ground near the conveyer belt at coal handling plant at the Pakistan Steel Mills (PSM) on the outskirts of Karachi, Pakistan, February 8, 2016. To match Insight PAKISTAN-STEEL/PRIVATISATION REUTERS/Akhtar Soomro 

A worker is seen through a window as he operates a machine filling wheat flour into sacks at Chiba Flour Milling Co. in Chiba east of Tokyo, November 13, 2015. Japan's Ministry of Agriculture bought a total of 119,415 tonnes of food quality wheat from the United States, Canada and Australia in a regular tender that closed late on Thursday. REUTERS/Thomas Peter